I spent a week going up and down the freeway - got 500km from a tank

First post wooo.......

ok, down to business....
2004 TL ES Sedan, just ticked over 82000KM, mainly city driving, seem to be averaging around 15L/100. bit disappointing, but not un-expected given the relatively short trips. Car is running on Caltex 95RON.

First post wooo.......

ok, down to business....
2004 TL ES Sedan, just ticked over 82000KM, mainly city driving, seem to be averaging around 15L/100. bit disappointing, but not un-expected given the relatively short trips. Car is running on Caltex 95RON.

save some money and get regular unleaded. you won't find any gains from 95/98RON.

I get better economy on 95RON, no extra power of course with the absence of the knock sensor, but definitely better kms per liter. plus i feel it keeps the injectors etc a little cleaner.

save some money and get regular unleaded. you won't find any gains from 95/98RON.

May not have any gains as far as power, but the car feels alot healthier. Ive run Vortex 98 in mine, and i feel the difference

meh, whatever. I'll put the cheap stuff in mine and put the $0.12/L towards something else. that's enough to buy a magazine every full tank.

meh, whatever. I'll put the cheap stuff in mine and put the $0.12/L towards something else. that's enough to buy a magazine every full tank.

Agree 100% its not worth it in a magna to run 95,98 unless its tuned for that fuel type

My car ran worse on Ultimate than 91RON.

After putting a tank of 98 through over the last week, doesn't feel any different to 91. Might go 1 tank in 10 just to clean her out, and put the 12c per litre difference towards my Steve Knight tune in October.

Regards, Tony

i have to say since replacing my dirty 200,000km CDH275's (factory 6G74 injectors) with a fresh new set of HDB305F (12 hole 6G75/380 units) fuel economy has increased from 14.5-15L/100km mixed city/very occasionally freeway,

to a staggering 10.5L/100km... granted i have only travelled 400km's CITY driving only (i can't wait to see lots of single digits for highway trips!!).. but i still am reading about half a tank.. where as before 450 would mean i need to fill up! (i hate using the fuel gauge as a guide for fuel economy, but i will post a more conclusive result once i run a few tanks through her)

also the exhaust is alot quieter, and there is a lot less resonance noise around the 1700rpm mark just when your on the converter accelerating.. the car also feels alot more responsive to very light throttle applications..

now i'm not 100% which of these it could have been.. but when i did the injectors

a few days before hand i did a Subaru upper cylinder cleaner 'treatment' which made it idle a bit smoother, and replaced the fuel filter (was only about 20 thou old anyway, but i knew i was putting the injectors in the day after)

so it could be that my injectors were really really dirty, and not atomising the fuel very well at all (which is my main conclusion as the exhaust note change indicates a better burning mixture), and or the 12 hole units are the bee's knee's for atomisation, as they have 12 tiny holes as opposed to 4 larger ones..

either way i have been struggling to get her under 14L/100 since i bought her a few years ago with 149 on the clock.. and i replaced everything (including o2 sensor) i could think of up untill the injectors just recently.. now i'm kinda kicking myself..

either way, fresh reco'd ones, with new o-rings ready to drop in and go i got for around $37 AUD each, from a guy in the US.. (our dollar is pretty good still)

could that possibly be because the injectors are actually bigger?

what do you mean, my economy is better, due to the injectors being bigger? or were you reffering to how much better the car is running and the exhaust being noticibly quieter?

i just think it's cos they were clean.. lol.. i don't doubt for a miniute that just having my normal CDH275's cleaned would have been of great benifit alone..

aren't the 6G75 injectors 305cc/min versus 275cc/min for the 6G74 ones? that would mean to deliver the same amount of fuel they would have to be open for 10% less time. if you're going purely by the trip computer, it's going to be off by 10% as it's calibrated for the smaller injectors.

I think 10% is within the range the stock ECU can adjust for, although you're probably running a bit rich on idle. I just wouldn't trust the fuel used on the trip computer anymore (or at least compensate by about 10%).

I might try to get some 6G75 injectors from the US... at $30 each that's crazy cheap.

cheers,
.wook

I've read a bit about using the 6G75 injectors as a 'bolt on' upgrade so you should be right mate :)

i was considering this but figured that an ECU reset and fresh O2 sensor etc etc would have it sort itself out, being AFM i wasn't too worried.. i usually use km's travelled vs fuel replaced (full tank at the same servo) i've got a bit of a way to fill the tank so i can get most of the time the same amount in there (there is usually just a wee bit wanting to come past the filler neck flap before i close her up..

so i will do that this time also, i find that the trip computer is normally about .6-.8L worse off compared to what i work out..

they are indeed bolt on, clip on.. no mods required..

the guy i used is Motor Man Fuel Injection - injectors4u@aol.com great as he accepts paypal :)

http://www.fuelinjector.citymaker.com/page/page/4212139.htm

just to put it out there but i have actually read that the CDH275's are around the 318cc/min @ 3 bar.. which contradicts the part number.. but a few websites have stated this.. i have never found the HDB305F's with the flow rate and pressure side by side either..

http://rswarrior.com/forums/t/140309.aspx

then i find somthing like this on a random webpage..

2. CDH275........284cc/min
3 HDB305F......308cc/min

assuming they were at the same pressure..?

I've actually tested the CDH275s myself, but don't have a HDB305F to test. mine flowed 220cc/min @ 40psi over 3 runs (I think it was 3, might have been 4).

I can't find the 04-07 Galant (6G75) listed on that website...?

he didn't list them, but he stocks them.. i think he said that a few cars over there got the 3.8L... montero, and galant being two that come to mind...

were your CDH275's clean? i think the industry standard is 3 bar testing unless otherwise stated isn't it? maybe the extra 5psi made up for the 60 odd cc's difference (i thought you would need a bit more pressure than that to make it flow another 60cc)

i get between 350 to 400 km to a tank around town but get about 500 on a long trip i had a v8 that was more economical

the car has been the same since the day i bought it 8 years ago mitsubishi tuned it several times and told me that is good millage out of this car ok i do have a heavy foot but i had a v8 commodore before this car and got better millage out of it.On a long trip open country road i get 600kms out of a tank with air con on and at least 3 adults and boot full of stuff. i do alot of long trips in the car and the more i do it the more it seems to be getting better.run platnium spark plugs always serviced every 5000kms. my aunty has the second gen 2.6 litre auto executive and only gets 320 per tank around town she drive so slow its not funny and never gets any better then this full recon motor and box even on long trip 2 adults air con on only got 450kms out of a tank. my parents have a third gen 2.4litre and get 600kms everday around town and almost 800kms on a long trip . mate has exactly the same car as mine 3litre v6 altera auto and only get 380 per tank and drives like grandad so each car is different and some chew the fuel others are great. I know from having my magna so long it doesnt matter how you drive it you get the same usage regardless

03 magna awd 148000kms driving around town no highway if im lucky 340kms to a tank but then highway i can get around about 560kms. not the best but worth it for such a nice ride :)

My Mitsubishi TE (1997) will gets around 450 - 550ks if I really push it to the limit with grandpa driving...slow acclerations, 100 max on freeway and 70 at most on normal roads...also consciously braking in advance. Maximum was just over 500kms just hitting E. Thought it would be alot worse :) And oh yeah mainly City Driving, probably 80% City, 20% Highway/Freeway.

Although I do have one question and this seems like the most relevant place to ask...

on your third gens when does the low fuel warning illumination appear. I thought mine appeared rather early...

See the picture below and thats when my low fuel light started flashing at intervals...is that the same as some of you? That was after 450ks without a refill. I usually refill the tank before it hits half but i wanted to test it a bit... Comments?

http://i770.photobucket.com/albums/xx345/mezzi_24/th_Dials.jpg (http://s770.photobucket.com/albums/xx345/mezzi_24/?action=view&current=Dials.jpg)

Latest results, Townsville to Oakey via Rockhampton
Ave Consumption 9.5
720km out of a tank
KL AWD
Best result so far.

My Mitsubishi TE will gets around 450 - 550ks if I really push it to the limit with grandpa driving...slow acclerations, 100 max on freeway and 70 at most on normal roads...also consciously braking in advance. Although I do have one question and this seems like the most relevant place to ask...

on your third gens when does the low fuel warning illumination appear. I thought mine appeared rather early...

See the picture below and thats when my low fuel light started flashing at intervals...is that the same as some of you? That was after 450ks without a refill. I usually refill the tank before it hits half but i wanted to test it a bit... Comments?

http://i770.photobucket.com/albums/xx345/mezzi_24/th_Dials.jpg (http://s770.photobucket.com/albums/xx345/mezzi_24/?action=view&current=Dials.jpg)

yes, it's quite common for the fuel light to come on when there's still 15-20L left in the tank.

my sedan usually has 18L left when the fuel light comes on, and my wagon has about 15L left.

cheers,
.wook

yes, it's quite common for the fuel light to come on when there's still 15-20L left in the tank.

my sedan usually has 18L left when the fuel light comes on, and my wagon has about 15L left.

cheers,
.wook

Sweet...cheers mate, just making sure my attempt to get the most out of my fuel tank won't leave me stranded freeway side :happy: - See if I can get more out of her next time

My fuel light comes on when the needle hits the very bottom stroke... and has about 12-15L left in the tank when that happens.

Having said that I still fill it before that happens. On average I put 55L in I would say.

my VR-X has been sitting on 10.8-10.9L/100km for the last few weeks, pretty good for around town driving with a little bit of freeway and a bit of spirited driving...

Well I drive 140k's to go to Tafe 4 Days a week so almost 700k's a week with local running around to the shops and visiting friends...


In my TF 3litre Manual with no mods.. I usually get between the 500-550 point before I get a little to worried about sucking down the crap in the tank...
My record so far has been 620k's and I pulled in for fuel when the fuel light was on for 6 minutes..
Being a student doesn't help... Although I am never putting E10 down the throat of my Magna regardless of how desperate I am..

At the moment it has done 450k's and it is one notch below half a tank..
but as we all know, the first half of the tank seems to last forever but the last half dissapears quickly !!

Doing all country driving, My 96 TE used to do 600-620 km then you could put in 65+ litre, Mums 98 TF(215000km) does 700-720 for similar running, Traded to 01 TJ and it did 800-820 doing the same sort of running. After 241000km I traded it on a 04 KL Verada, there the good news ends. The TJ used to often give 7.0-7.5 L/100 for a tank full,the verada is much happier sitting between 10.0- 10.8, hence my ECU resetting thread. This is the first one of the four with 16" alloys and also have a wing on the boot, i don't know if they are the cause, fuel use is the worst surprise I got with the change-over, I just can't fallom what they have done wrong. Was there big change in emmision control rules around 2003-2004?

Was the TJ a 3 or 3.5ltr model?

Is the KL a 5 spd auto? I aslo found a big difference between my TF, both TH's compared to my KJ GTV.... Definately I think the 5spd auto makes a difference too.
There is also 120kgs heavier in the KL over a TJ exec.

the auto is 5 speed but it would be the same ratio in top gear, wouldn't it?

the auto is 5 speed but it would be the same ratio in top gear, wouldn't it?

Nah the 5 speed auto revs at about 2200RPM at 100km/h. Bit of an affect on hwy economy but around town it helps.

Nah the 5 speed auto revs at about 2200RPM at 100km/h. Bit of an affect on hwy economy but around town it helps.

My 4 speed auto revs at about 2600-2800 rpm at 100km/h (from my memory, will test again and report back) so that wouldnt be too different but I suppose it would affect consumption a little. Just from a theoretical sense

EDIT: rpm actually at 2300 @ 100km/h...see below

Hmm, my 4 speed sits at around 2200-2300 at 100kmh.

The tallest gear between a 4/5spd auto is the same @ 0.731

The difference is the final drive ratio which is 3.274 on the 4spd and 3.684 on the 5spd making the 5 spd rev more to achieve the same speed, being a much shorter ratio. Which explains it.......

At 100km/h my 4 speed auto TL sits at 1950rpm.

The GTV being a 5spd sit around 2600ish rpm @ 112kph, but thats with 2 adults 3 kids and a boot full.... Still gives good economy though around 9ltrs p100k

The GTV being a 5spd sit around 2600ish rpm @ 112kph, but thats with 2 adults 3 kids and a boot full.... Still gives good economy though around 9ltrs p100k

110km/h in my 4 speed auto is around 2150-2200rpm.

Yeah that'd be about right I reckon. Add the extra weight and IMO that final ratio difference, mine being a 5spd.
The TF Advance I had, would gladly sit on anything between 7.88-8.5ltrs hwy avg. The TH Manual sports about 8.5-9ltr but had some work done.the TH solara about 8.5-9.0 and the GTV as I stated about 9+ltrs

Hmm, my 4 speed sits at around 2200-2300 at 100kmh.

Yup, I did a recheck and I'm getting around 2300rpm on the freeway. Must have been doing about 120 to get those readings. If that's the case then there wouldn't be too much difference in fuel consumption at those speeds for both cars then right? (5 or 4 speed).

both 4sp autos that I've owned sat around 2000RPM @ 100km/h.

the 5sp manual sits around 2600RPM @ 100km/h.

the 5sp auto final drive ratio is closer to the manual than the 4sp auto, and thus will use more fuel on the highway.

Doing a quick review of my fuel spreadsheet, found that my current average consumption is the lowest it's ever been at 10.362L/100km's (91 tanks of data since June 2008). Been a fair bit of highway driving lately, so I dare say that will trend back up to over 10.4l/100km's.

I need to work out how to change my poll entry from 400-450 to 600+.

had an excellent week, filled up after 620k's, and the fuel light hadn't even come on! averaged 9.3L/100k's, forgot to check average speed but it's normally around the 50-60 km/h mark

Mine is an unmodified TH Sports (lowered only) I do all country driving Geelong and back to Meredith etc, only short trips are dropping kids off at school bus.
On average I manage 8.5/100 in granny mode, I use cruise all the time and rarely thrash my car, after all it's not my old 550 hp Mercury Cougar.

It's not unusual to top 900 ks per tank, I made it from the outskirts of Melbourne (where I filled up) and drove to Sydney without re-filling, fuel light had been
on for awhile when I got there, but what the hey it made it :)

I have a 99 TH wagon that`s lowered and has 18`s fitted with quite a few k`s on the clock and on long distance drives i average around the 550 mark and around 400-450 on the shorter trips, thats on tassie roads 2.

got a 98 TF wagon running on 19s, lowered with superlows at the front, lows on the rear.

i do mainly city driving, bout 45km from my house to work.....so bout 90kms per day

i look at everybody's consumption on here ans think either
- there is something wrong with my car
- its the way i drive
- or its the trips i make

i travel everyday 4km to work and then 4km back no traffic but a few red lights..... and then outside of that alot of similar sort of trips..... i average 15.5 - 17 goes up to 19 if really bad traffic.....
however as soon as i get it on more open road either motorways or 60km/h to 80km/h zones with no traffic and lights (1am-4am) it drops right down....never put the trip computer just for one of these trips so not sure but it drops down to between 11l/100km to 13l/100km.... if i set it to actual consumption when cruising at 80km it varies between 2.8 (no accel and 5.8 normal accel......
average seems to be 430-480per tank driving only to work
when i do drives up the coast or to penrith or down south etc it goes anywhere between 500-600km per tank....
i think it is the style of trips i do plus my driving style......

Matt 1985- If you are getting 430-480 km from a tank in local running, and you fill up when the warning light comes on - about 50 litres to fill you up again. This equates to a consumption of around 11-12 litres per 100 Km.
Seems about average to me.;)
Perhaps your on-board computer is not calculating correctly.

i was extrapolating the 16.5l/100 km to the full tank @ 71 litres to give 430l per tank..... never fill up once per week and have never gone below 1/4..... however i must say some weeks i'm at half a tank after only 200km (400km per tank).... some times i'm at just above 1/4 after 400km (550km per tank)so it varies alot depending on the trips i make i suppose......

don't use the fuel gauge to tell you how much fuel you've used.

we dropped Dan's tank and he emptied it. the gauge was at 1/4 and guess how much fuel he pulled out of it...?

over 30L! :shock:

i originalyl posted 551-600 but after further review im getting a bit better than 600 odd out of a tank. 80% of that is highway driving but its still pretty good i thought. the avg fuel meter thing sits at around 9.1 or 9.2 almost all the time

Gday, I have a TH Altera, modded exhaust, and efi tune only real 'mods'.

Around Sydney I get on average 10.2L/100km giving it some, then highway (with shitloads of stops cause of children..) average 8.2 L/100km. Just did Sydney-Parkes and back, 61 Litres - 8.2L/100KM - 741KM.

Got to say the best thing that worked for me was using 10w50 oil, engine is way quieter, more responsive, and uses on average about 1 L/100KM less than when I was running normal shit oil! Definitely worth the extra say $20 when changing the oil.

my fuel guage and trip computer both seem accurate by the amount of fuel that goes in when i fill up......

Got to say the best thing that worked for me was using 10w50 oil, engine is way quieter, more responsive, and uses on average about 1 L/100KM less than when I was running normal shit oil! Definitely worth the extra say $20 when changing the oil.
What is "normal shit oil"?

my fuel guage and trip computer both seem accurate by the amount of fuel that goes in when i fill up......
really?

both of my TJs report ~30L used when at half on the gauge (should be ~35L), and as I said, we dropped a tank that was reporting 1/4 on the gauge and it had about 30L in it. given the tank is 72L, I would have 1/4 would be less than 20L.

just got back from Sydney in the wagon. filled up with 61.5L for about 680km (or a touch over 9L/100km). not bad for 1 hour stopped on the M5 and about 300kg of computers in the back for the trip home.

cheers,
.wook

Filled up with Shell V Power 98 the other week with that 10c discount voucher and managed an easy 750km in a 80/20 Sydney/Newcastle freeway/suburban combination with the a/c on around say 50% of the time.

Before that on E10 in the same driving conditions (I drive pretty much to the same places on the same days every week), I could only JUST manage 700km, albeit with the a/c 100% of the time. I mean, it's usually about the conk out when near 700.

Filled up at the weekend with E10 after the tank of 98 and the Dist. To Empty displayed 760km. I will now see if I can match the distance on 98 using E10, although I will keep the a/c off. This morning I had travelled 130km and it displayed 630km, so we are on track.

What E10 are you using though? For example, E10 is available in a 94 from Liberty and a 100 from United, there would have to be a difference between the two one would think!

On this last particular fill I used E10 from United at Ourimbah which is 95 Octane. Normally I use Mobil E10.

i have so far not managed more than 600 out of a tank and thats 50/50 highway city driving........ with a/c mayb 50-75% of the time.....

i have so far not managed more than 600 out of a tank and thats 50/50 highway city driving........ with a/c mayb 50-75% of the time.....
how much do you put in when you fill up?

i am extrapolating from filling up at when at half.... yes i mean approximatly 35L........ (not by guage reading)

My TJ 4spd auto uses 12.5-13 L/100kms...all city driving, some Motorway driving....its has been around that figure for the past 7 years.. I am really surprised that you guys get such good mileage? 12.5 is when I fill up premium...

My TJ 4spd auto uses 12.5-13 L/100kms...all city driving, some Motorway driving....its has been around that figure for the past 7 years.. I am really surprised that you guys get such good mileage? 12.5 is when I fill up premium...

No knock sensors on the 3rd gen and theyre tuned for 91RON, in other words, you could be putting 102 octane in and the engine would treat it as 91.

Also my fuel consump. is schizo.

Usually low 13's which is 65% hardcore city driving (Parramatta Road in peak) and 35% suburban.

If I'm doing grandma mode and it's not peak, I can get mid 11's.

However I've seen it sitting at 18 and refusing to come down.

However on the freeway I get 8's.

The Magna really isn't a city car, it's a cruiser.

No knock sensors on the 3rd gen and theyre tuned for 91RON, in other words, you could be putting 102 octane in and the engine would treat it as 91.

Also my fuel consump. is schizo.

Usually low 13's which is 65% hardcore city driving (Parramatta Road in peak) and 35% suburban.

If I'm doing grandma mode and it's not peak, I can get mid 11's.

However on the freeway I get 8's.

The Magna really isn't a city car, it's a cruiser.

premium fuel 95/98 generally has better additives which assist with a cleaner burn. This can have positiive results on the Magna even though it cannot detect knock to advance or retard. It is a proven fact that running premium in a Magna attains better economy.

From what I've read, it'd result in slightly better consumption because of the cleaner fuel itself, but without the efficient burning of it in the actual engine it won't result in better economy.

That sentence might not make sense, but I understand fuel economy to involve money, in the end you're not saving anything without a proper tune because price per 100km on PULP compared ULP is still more expensive.

I may be wrong, this is just what I've read.

Filled up with Shell V Power 98 the other week with that 10c discount voucher and managed an easy 750km in a 80/20 Sydney/Newcastle freeway/suburban combination with the a/c on around say 50% of the time.

Before that on E10 in the same driving conditions (I drive pretty much to the same places on the same days every week), I could only JUST manage 700km, albeit with the a/c 100% of the time. I mean, it's usually about the conk out when near 700.

Filled up at the weekend with E10 after the tank of 98 and the Dist. To Empty displayed 760km. I will now see if I can match the distance on 98 using E10, although I will keep the a/c off. This morning I had travelled 130km and it displayed 630km, so we are on track.

First attempt quote above was destroyed by the crash on the F3 the other week and I lost about 100km from my range sitting in that car park. Second attempt on Mobil E10 and I managed 783.6km. Air con only on for a few minutes one morning to clear the windscreen. Drove conversatively but kept with the flow of traffic. Tank takes about 67 litres so my average for last week is 8.5L per 100km. So, with no air con, can squeeze an extra 80km from a tank. Filled up with Mobil E10 again, but after this one is empty, will try for 800km+ on 98ULP with no air con.

i get 18 to 19 ltr per 100 kms fuel system is dirty to lazy to fix it when was running properly 11 around town 7 on highway to get an idea i live in parramatta sydney and drive past grafton with air con on

Driving my newly bought TE from melb i got to the dog on a tuckerbox (a little over 500km) with around 3/4's of a tank. That was with giving it a bit of a boot now and then. so in theory i could have gotten between 6 and 7 hundred km's out of that tank (the fuel gauge i suspect is innacurate as it reads just below full when filled to the absolute limit). And it's sitting on Half a tank since i refilled at the Dog on the tuckerbox. so 380kms on half a tank. 3rd gens love those highways :D

Am yet to find out how much it likes local driving. should know in a few weeks lol

i have a tj solara.
im getting 11 around town in granny mode. if i start getting spirited, it jumps up pretty fast so i keep that to a minimal wen im trying to save petrol.
on the highways, im getting around 7. if the roads are nice and flat, it sits at around 5. remarkably, it's not too bad at all. keep the air filter clean. half way on my last road trip, i had to pull over and tap it clean again cos the efficiency was going down. once i put it back in, it was nice and low again.

TJ Sport, pretty much stock, get around 10.5 around town which is occasional spirited driving. get around 8 on the highway.

Currently doing a lap around 'Oz.

Best consumption so far *towing a 5.5m pop-top van* is 533km from a single tank, travelling from Mt Isa to Tennant Creek. I intentionally let it run dry to see how far I could go. That works out to 7.6km/l, or 13.13l/100km. Admittedly, I had a tailwind, but the terain was also somewhat undulating.

Without the tailwind, I got 490km travelling from Tennant Creek to Mataranka. That's still a respectable 7km/l, or 14.29l/100km.

In both cases, fuel was regular unleaded.

2004 TL AWD 78k on the clock. Gets serviced roughly every 6000 with Synthetic oil...and change of filter...plus i keep my tyres checked every week.

Always use BP Ultimate

Ceramic coated Extractors, High flow metal cat, Lukey LR2779 Muffler
Additional cold air plumbing to airbox (50mm flex pipe)
Trans Cooler
18X8 rims and 245/40/18 Rubber (10mm smaller OD than original)

Mixture of conditions.....not much freeway.....usually ballpark figure of mid 400's...got 470 out of last tank and took 53 litres..

Lowest AVERAGE fuel according to computer was the other day on cruise control going through the Clem 7 Tunnel at 80kph.....recorded 7.8 the whole way through.....

but usually around town it's sits around 11-12 litres/100k.

so...all in all very happy for a heavy car ,

Cheers,

Pug

Went for a cruise up to anna bay (port stephens), filled up a Wyee, set odometer to anna bay and back, filled up again at Doyalson, 235k's on odometer and only took 19.6 litres, which roughly averages out at 8.3l/100ks.

This route is a mixture urban, semi-urban and highway/freeway.

The car is a TJ Exec 3.5 manual, driven with economy in mind.

Also have done similar distance runs to sydneys northern beaches and back for work, and averaged about 9.5 - 10l/100ks, which 50/50 freeway and urban.

I get 650-700 km out of a tank and thats driving around town and a lil bit of highway driving. thats coming out of a 2.4L 4 banger :) i was getting roughly 450-500km out a tank before I had the ecu remapped and it purrrs now ;) runs so much smoother than what it did on the standard mapping

2003 TJ Series 2 Exec

No mechanical mods
17" wheels.

11.0 l/100 city driving (Sydney)
9.0 l/100 on a run to Brisbane
Tried to drive as economically as possible and it made f*** all difference around town.

About 450kms to the tank, I think.

3.5L TH Advance, urban/rural driving approx 500-550 k's per fill.
Fill when the light comes on.....

Here's a couple of pics of my average on the freeway.

http://i79.photobucket.com/albums/j132/walker35tc/IMG0029A.jpghttp://i79.photobucket.com/albums/j132/walker35tc/IMG0031A.jpg

2003 TL Magna - no mods or anything - get 10.8-11L/km around town.

May as well add my two-bob. My fuel consumption is pretty terrible. I use between 9.3-9.8l/100km on my regular highway trip (http://www.google.com.au/maps?f=q&source=s_q&hl=en&geocode=&q=brisbane&sll=-25.335448,135.745076&sspn=61.791575,95.712891&ie=UTF8&hq=&hnear=Brisbane+Queensland&t=h&z=15) (all motorway/highway apart from passing through towns). TJ VR-X auto, 140k kms, regularly serviced, O2 sensor replaced, premium unleaded fuel. My most recent trip was just me, a suitcase and a laptop and I still only averaged 9.5l/100km.

I'm not the most grandpa of drivers (I like to sit at my 5km/h over, thank you very much), but it still seems awfully high.

I've done the trip in my parent's VE SS (06 model, without the feature that shuts down cylinders when not in use) with me driving (same driving style), my family (three other adults) and a bootful of luggage and averaged 10.1l/100km. Yeah it only sits at ~1800rpm on the highway, but it's a V8 and a couple of hundred kilos heavier...

I get about 9.5L per 100km in my recently purchased TJ Sports, Auto, 3.5 (6G74) ...... great car to drive on the highway.

ok well i have a question

My TJ sports (3.5, 5 speed tippy) is not to good on fuel im getting 15.0/100km, is this normal or way to high, i dont thrash it much, ocassionaly here and there a little nothing like on a regualar basis or anything

I always use 95 RON, basically stock besides from 2.5 inch cat back, k and n panel filter, lowered, 17 inch wheels, i cant get it below 14 even if i fill up reset the digital consumption thing and baby it maybe if im very lucky might get below 14 but i doubt it.

If someone could tell me if this is normal or suggest reasons to why its high

cheers Tom

The other weekend I got about 450ks out about 3/4 of a tank, most of it was highway driving

tommo6 - I get about the same fuel economy. I've been keeping a record of all my kms & fuel and I can push hard and get about 19L/100km, but normally get 14 or 15 L/100.
overall average in 6 months is about 15.6.
I use standard unleaded if I can get it, or else E10. (the ECU isn't programmed for high octane fuel, so your only benefit would be if the engine is cleaner on 95.

I don't know what's wrong but suspect the O2 sensor. I'm going to see if I can swap it cheaply to see if it fixes it.
Will also look at the cat and make sure it hasn't collapsed. Was your cat checked with your exhaust swap ???

sorry I couldn't be much help.
Graham.

Tom,

My TJ sports (3.5, 5 speed tippy) is not to good on fuel im getting 15.0/100km, is this normal or way to high, i dont thrash it much, ocassionaly here and there a little nothing like on a regualar basis or anything

I always use 95 RON, basically stock besides from 2.5 inch cat back, k and n panel filter, lowered, 17 inch wheels, i cant get it below 14 even if i fill up reset the digital consumption thing and baby it maybe if im very lucky might get below 14 but i doubt it.

If someone could tell me if this is normal or suggest reasons to why its high

Seems on the high side to me, compared to all of the other replies in this thread. There are many reasons for high fuel consumption - however search through the various posts in the forums, and you will soon get an idea of the most common causes.
Good luck.

Graham,

cheers mate, all information is helpful

The guy didnt check the cat, so i would have no idea, down the track i have plans for pacemaker headers and high flow cat anyway.

So you reckons it could be the O2 sensor well i have a service coming up at 180,000 so i will get them to suss it all out, tbh i reckon its to high mate, judging by what everyone else in this thread is getting mine and urs is quite high im gonna suss it out and il get back to ya (PM u mate) cheers Tom

It might help to put everyones average KMPH if they have the trip computer
Mine is atm 13.8 with average of 27kph
All city driving only.

I've been consistently getting that. Have never tried 98 yet. But will soon, then i'll definitely know if it'll make a diff if its below that.

TH Sports 4 speed auto...for the past 9 years (whilst my mum owned it), the average was 10.1/100km ( 9 years and 260,000km). That was driving from Campbelltown to Roselands and back 5 days a week and regular trips away etc. I bought the car about a month ago, and my average has been about 13.5l/100km. That includes a few spirited drives but the major difference would be that i tend to use it for short trips, ie 5 minutes at a time. Kids to school, local shops etc not the kind of driving that will give good economy.

Ok, lately i've been driving my Ralliart like i normally drive - accelerate fast and corner hard, coast to stops.
Has been holding steady at 11.4L/100km, Mix of town/highway.

670L out of a tank according to the computer.

Generally average about 10.5l/100km but generally round 600km mark or so id get outta full tank

Ok, lately i've been driving my Ralliart like i normally drive - accelerate fast and corner hard, coast to stops.
Has been holding steady at 11.4L/100km, Mix of town/highway.

670L out of a tank according to the computer.

Something wrong there mate. 670L tank?

Oh, 670KM from a tank of fuel? Ok.

Stop looking at the computer:facepalm Go off what you actually fill up with vs how many km's you've done.

Hell you could fill up, get on the highway at 1% throttle and it'll say 900km's left to a tank if you continue to drive at 1% throttle.

Ok, lately i've been driving my Ralliart like i normally drive - accelerate fast and corner hard, coast to stops.
Has been holding steady at 11.4L/100km, Mix of town/highway.

670L out of a tank according to the computer.

Ummm, gotta be something wrong with that. My Ralliart with the tune is more economical than what it was before it had the tune. Around town I average 10.9 - 11.2. on the highway its 7.2 lt per 100k. Your looking at around 640k's max for that so something not 100% right about the reading... i think DISCIPLE & TUFFY are correct in what they're saying. It needs to actually be tested with a full tank of fuel in normal driving conditions. Say, half town ks and half highway ks. That's what I've done. (BTW if your thrashing it and not driving without the foot planted... look at more realistic results like 13.4 onwards.) ;)

I don't thrash it often, i just accelerate relatively hard up to speed because i don't like hanging around.
Current average use is 12.1L/100km after a bunch of highway/freeway driving to go with the town and traffic stuff. I'm hoping for an average of around 11.5L/100km, which probably means more cruise control and slightly less hard driving. I'm happy if it's under 12.5L/100km.

I've filled it up with Shell 95RON at Cessnock yesterday, so i'll run it until the fuel light is on and see how many kms i got out of it.

Out of interest, how/where did you get yours tuned at?
If it's noticeable improved fuel economy and maybe given it a little bit more power, i'll defiantly get mine done.

over the last couple of weeks and the first week was about 80% freeway averages about 10.2ltr/100km
2nd week i was hyper fuel saving driving, 80% freeway driving and i managed to get 8.5ltr/100km
and the week just gone i havent really paid attention and about 50% freeway driving and got 10.6ltr/100km

so thats with 98 RON BP Ultimate, and a service about 1500km ago. overall pretty happy considering the car has done over 288,000 km

'97 TE Altera 3.0L auto, bog standard, on its 2nd exhaust, 3rd battery, 3rd timing belt, 3rd set of rear plugs, 4th set of front!! 5th set of tyres, all country driving, mostly 110 kph (WA)
Currently on 367,961 kms, total fuel used 31,566 litres = 11.65 km/litre or 33mpg
Damn Fine Automobile!

Wow - what an awesome first post! Go Steve!

I've just filled my AWD up after a weeks driving including 9 runs at WSID on Wednesday night.
338.3km for 56.9L = 16.83L/100km not too bad considering I had WOT for a measurable percentage of the week :)

hi all.

just bought a TH 3.5ltr (using BP Ultimate)

last tank was 712km to 59ltrs

average was 7.0ltrs per 100 so the trip ecu has stated.

99 TH Sports Auto with 306,xxx km, totally stock using regular unleaded.
Caringbah to Albury and then 80kms of local travel for a total of 652 kms using a total of 59 litres = 9 ltr/100km.

hi all.

just bought a TH 3.5ltr (using BP Ultimate)

last tank was 712km to 59ltrs

average was 7.0ltrs per 100 so the trip ecu has stated.


Ignore the computer - 59 ltrs to travel 712 km is just under 8.3L/100km. Use a calculator. 59/7.12 = x L/100km.
Caz_375 has calc.exe sussed :)

Mine does 550km and drives the fuel alarm crazy. Mine is also a dedicated LPG, I not sure that is good or not. All I know is I am paying $25/tank/week compare to my old Suzuki Baleno $ 46-50/tank/week. Bloody Good!

I just replaced my 02 sensor, I drove to the workshop and the readout was 13.8 l/100 average, fitted the sensor and got 10.5 l/100 on the same return trip in more traffic.

I just replaced my 02 sensor, I drove to the workshop and the readout was 13.8 l/100 average, fitted the sensor and got 10.5 l/100 on the same return trip in more traffic.

Damn I'm doing that then. I got 15L/100km on the first tank, given I had a bit of novelty driving and I came from driving an r34 gtt skyline, but I was still pretty shocked. Need to tame my right foot I think

I only did this after knowing eberything else, about my car, leads, plugs, air filters, servicehistory, etc
And I have seem a gradual decline in economy.
At 150 a pop, I'd check it out with a multimeter beforehand.

Just drove to Yass and back, got 8.5Ltrs/100k's.
Only engine mods are Extractors, that being said on long trips, it always sits at 8.5

just to let you know guys your o2 sensor should be replaced every 80,000kms

When I bought the TE, it was only getting about 350km to a tank around town.
Since then, I've replaced the 02 sensor, cleaned the throttle body & MAF sensor and now it easily gets 450-500.
Done 270,000k's so pretty happy with that!

Hi
around town (brizzy) with astandard car with K&N filter is 10.2 per 100km
on highway is 7.2 per 100km

Saweeeett
Got 650km from my last tank, 200k being country k's

Yeah, but how many litres did you use? 650K from a tank that's been bashed in and is now 50L is much better than running a 70L tank dry to achieve 650km.

I'm currently running without an O2 sensor, so will be interesting to see how many kms on my next fill up, then I'll wire in the new O2 sensor and be able to compare. Hopefully new sensor in the exhaust but without power won't kill it :(

686km from 56 ltrs

th magna 1999 model

I went to Albury Wodonga in my 2001 TJ Sports on gas and got 500k`s for 60 ltrs. 8.3 k`s per litre. 1200klm`s all up and went like a charm.

Ok guys


i get really fuel economy on my tj VRX...worse then my previous V6 Commodre

i put $25 in and it gets me under 100kms..this is normal driving, what can be done as this seems ridiculous!

how big is the tank in these things?

my old vs had a 55ltr tank was $60 to fill and i got around 450kms to a tank

Ok guys


i get really fuel economy on my tj VRX...worse then my previous V6 Commodre

i put $25 in and it gets me under 100kms..this is normal driving, what can be done as this seems ridiculous!

how big is the tank in these things?

my old vs had a 55ltr tank was $60 to fill and i got around 450kms to a tank

You can't use dollars to guage how much petrol your car uses. $25 @ $1.4/L gives 17.8 litres and $25 @ $1.2/L gives 20.8 litres. Fill your tank to the first click, note the odo reading, then drive for a week and note the odo reading again, and then fill up to the first click and see how many litres it drank and not how much it cost you dollars wise to the first click.

Your TJ should have a 71L tank and I am pretty sure the VS had a bigger tank than 55L, like 73L.

You can't use dollars to guage how much petrol your car uses. $25 @ $1.4/L gives 17.8 litres and $25 @ $1.2/L gives 20.8 litres. Fill your tank to the first click, note the odo reading, then drive for a week and note the odo reading again, and then fill up to the first click and see how many litres it drank and not how much it cost you dollars wise to the first click.

Your TJ should have a 71L tank and I am pretty sure the VS had a bigger tank than 55L, like 73L.

VS V6 had a 59L tank, the V8 had a 73L.

Saffire VRX, fill your tank completely, drive 100km, then refill your tank and see how many litres it takes. or reset your trip computer after filling and see what it indicates your fuel consumption is.

Gladstone to Sunny Coast (http://www.google.com.au/maps?f=d&source=s_d&saddr=Mcdonalds,+dawson+highway,+Gladstone,+Queens land&daddr=Bruce+Hwy&hl=en&geocode=FezDk_4dorwDCSEshpxxxwMO1Q%3BFZOgZv4dRB4fC Q&mra=ls&sll=-26.884105,153.019638&sspn=0.491785,0.804062&ie=UTF8&ll=-25.582085,152.753906&spn=3.978055,6.432495&z=8) (stopped counting there as traffic was stop-start for the next 20km). All highway driving, but that involves driving through a few towns (only one with traffic lights though). Average speed of 93km/h. One person and a boot full of luggage. Just serviced. No mods. O2 sensor replaced. Premium unleaded.

9.9l/100km.

No idea how people get 7s and 8s out of their Magnas. Even Gladstone-Gin Gin with very light traffic (overtook one car) was 10.1l/100km (avg speed 94km/h).

Red, I would be pretty happy with that, there a many reasons you use more fuel, heat being the main contributing factor, engine heat, air density, air con working harder, hotter stickier tyres.
Compared to a car running down south, on better roads, less (longer) corners, cooler air temps, more effecient fuel burning, aircon being used less (doesnt work as often or as long to maintain cabin temps).
You know how huch better your cars runs on cold mornings.
By this reckoning, AMC///TAS has some of the fastest cars on AMC (with comparable mods).

EDIT
Humidity plays a factor in the air density as well, making it thinner (would you beleive).

True, it was a bloody hot day, and I did have the air-con going (as always). Tyres had 40psi in them, and I just had a wheel alignment too.

Even in winter, the best I've recorded on a Brisbane->Gladstone trip was 9.3l/100km. That was with the factory 17s and on a very, very quiet day.

In fact, 9.3l/100km is the best fuel consumption I've seen since I bought the car.

I guess the most annoying part is that my parent's VE SS gets similar - if not better - fuel consumption on the highway. Yes, the revs sit pretty low with the 6 speed auto, but it's a pre-AFM V8 (so no cylinder shutdown) with an extra 500kg of weight (heavier car + more passengers).

Have you ever used the tried and true method for fuel use, odo and liters at the pump. I've always been a bit wary of thsee computers.
There are some good apps out there for smartphones for fuel use.
I use Milage on android.

does seem a tad high, but tyres play a very important role in economy. Before I got the VR-X rims, I had stock 16's with Goodyear NCT3 tyres. On a run to Brisbane during mid December I got an incredible 6.9l/100km over the entire leg of the trip. Now with the Eagle F1 tyres the best I got with auto was 7.5 on the way to Melbourne in winter.

.....

Have you ever used the tried and true method for fuel use, odo and liters at the pump. I've always been a bit wary of thsee computers.
I go off the thingamajig in the centre console. I've compared it to the actual fuel consumption by using the trip meter and litres at the pump and the two figures are always pretty similar.

I always refuel in Gladstone, and then put ~38l of fuel in at Gympie, which is ~370km south of Gladstone. If the computer's out, it wouldn't be by much (<0.5l/100km).


does seem a tad high, but tyres play a very important role in economy. Before I got the VR-X rims, I had stock 16's with Goodyear NCT3 tyres. On a run to Brisbane during mid December I got an incredible 6.9l/100km over the entire leg of the trip. Now with the Eagle F1 tyres the best I got with auto was 7.5 on the way to Melbourne in winter.
I currently have Maxxis MA-Z1 tyres which I think would be in a similar league to your Eagle F1s.

Before that, on the factory 17s, I ran Good year Excellence - a very 'all round' tyre. Again, the best fuel consumption I got with them was 9.3l/100km.

Have you set the trip computer with the correct engine size and sedan/wagon settings?

Hey Guys...

On a Simular note..... according to Redbook, a TJ II Auto Wagon uses 8.4 l/100 Combined , whilst a TL Auto Wagon uses 11.5. THe Motor is the Same, (I believe), but is the extra weight the killer here?
Looking at a few posts about, the figures seem to vary all over the Place.

My Wife has a TL, and gets around 11 l/100, (As per litres/odo), with a Mixture of Hwy and city driving, Doesn't like using the Air-Cond, and with two Children under 3 in the back seat, drives with a Light(ish) right Foot.

Now she Loves her wagon, but hates the Fuel it uses..... Would Down grading to a TJ II improve the Fuel Consuption?

Sorry Bout the Questions, thought might be better in this thread instead of starting a new one...

Cheers.

Hey Guys...

On a Simular note..... according to Redbook, a TJ II Auto Wagon uses 8.4 l/100 Combined , whilst a TL Auto Wagon uses 11.5. THe Motor is the Same, (I believe), but is the extra weight the killer here?
Looking at a few posts about, the figures seem to vary all over the Place.

My Wife has a TL, and gets around 11 l/100, (As per litres/odo), with a Mixture of Hwy and city driving, Doesn't like using the Air-Cond, and with two Children under 3 in the back seat, drives with a Light(ish) right Foot.

Now she Loves her wagon, but hates the Fuel it uses..... Would Down grading to a TJ II improve the Fuel Consuption?

Sorry Bout the Questions, thought might be better in this thread instead of starting a new one...

Cheers.
I'd take the safety of the tl over the fuel eco of the tj any day. don't jump to conclusion about the tj til you do the same routes with same conditions.

TF 3.0 L manual transmission: about 540 km from 60 L of LPG. Cannot remember that last time we used a full tank of petrol. Mostly long distance country running. Best ever 640 km from 65 L of gas, worst about 500 km. Most running ia at 100 - 110 km/hr, although one trip in outback Qld got us nearly 10 L/100 km @125+ km/hr. I erckon it should do better than that but it never has.

My TJ Magna Sports with the 5spd Auto is currently showing about 12.7L/100KM on the trip computer...despite being used on a freeway almost constantly recently (at speeds of around 80-100kmph)

It has an aftermarket exhaust and 19" Rims, but this shouldn't be right? I thought V6's should be more efficient then this.

Basically a trip to uni and back takes a quarter of a tank (that displays, i.e. not the reserve below empty), and is 100KM in total via Google Maps, but I know the odometer is off due to the change in rim size, so I haven't really been looking at that. Maths suggests this is actually around 15L/100KM in almost only freeway driving conditions, but this shouldn't be right.

My AWD KL wants to return +550 on the city cycle - with AC on, and not driving for economy either.
On the odd occasion I try to drive for economy, it seems to perform even better.

Get it out on the highway for a 100% highway spin - and it has dropped below the 10L/100... and past the9L/100 KM markers as well Best has been a 8.6L/100 actual - on a round trip to Airlie, including some overtaking etc.

Only engine mods - K&N Flat panel, NZ Cai, HM headers, 200cpi cat and VRX rear muffler - and recently the SKR tune for 98Ron.
oh and the 19s - but they have been on there for 2ish years now
Considering its an AWD tank driving through an auto - those are figures that are not bad at all!

Service history plays a big part - is it overdue for an oil and oil filter change, does the trans need flushing (Auto) is the air filter blocked / gunked up, are the plugs clean etc etc - it all adds up to fuel saving in your pocked!

on lpg best is 665kms from 62L on the freeway, worst is around 600kms on the freeway. never run it on petrol for long enough to know, but i dont think it would be much more it would do if any. seems to be more efficient on lpg. dont know about kms in city driving. havent measured it but will soon.

Ralliart magna. 2002. Manual.

10l/100km around town
8.5l/100km highway

I live in a large country town so the traffic is lite and free flowing.
Amazing economy considering. I drive is tame most of the time but use the power when needed.

Steve

I have a 1997 TF 3L V6 manual

I get around the low 7's per 100km on the highway and mid 9's in stop start city stuff.
Currently on my work run, I'm doing 8.2L/100km, which isn't bad considering the mix of conditions and my sometimes lack of care of fuel economy :)
Has a K&N filter in the stock box and a modified rear muffler (6g72's sound awesome!)
I've also only used 95 fuel in her since i purchased her. I don't trust e10.

Best i've had was 918 km's, all highway driving.

Just wondering on the subject of TL/W's using more fuel than TJ's, what about the styling? The TE magna was one of the most aerodynamic aussie cars with 0.28cd rating. I'm not sure how far this was carried through the models, but I'm guessing that the TJ still has most of the aero because of it's minor facelift. The TL/W has a different face on it and is rated high in fuel consumption than the TJ. Could that be the cause?

Damo

In my 2002 TJ II I recently clocked up 600km at 9.8l/100km with about 300km of freeway and 300km of city. My warning light comes on when there's still about 15l left in the tank

Reset my trip meter on the way back from uni tonight (http://www.google.com.au/maps?f=d&source=s_d&saddr=M1%2FPacific+Motorway&daddr=Pacific+Motorway&geocode=FZnqVf4d75QjCQ%3BFV9KW_4dkwMgCQ&hl=en&mra=dme&mrsp=1&sz=15&sll=-27.569346,153.098302&sspn=0.03051,0.050254&ie=UTF8&ll=-27.725475,153.318329&spn=0.487462,0.804062&z=11) for shits and giggles. 50kms of very smooth freeway, mostly 110/100km/h with some 80km/h roadworks. Bugger-all traffic and it was raining so driving style was very smooth conservative. Air-con on low.

Average speed of 104km/h with an average fuel of 9.1l/100km. Pretty pleased with that. If only regular highway driving was that economical :-/

Magna Advance TJ Series 2 gets around 450km to a tank
Magna VR-X TJ Series 1 gets around 450km to a tank.

Both vehicles do city driving, never leave the 60km zones, and are driven lightly, ie no reving hard. Well so my wife says...................


Boosty

My first tank I got 14.5 liters per 100. this tank with me driving like a grandpa I have managed 13.1/100km.

^ Something is wrong there.
My 3rd gen wagon (3.5 litre with no oil change since 11,000kms ago) managed 9 litres per 100km around town.

The engine in my car atm isn't bad. Since I've put the stock intake back on - At 110km/h it pulls 6.5L/100 @ 110km/h (tested over a distance of 130km) freeway. Around town heavy-footed nets 10.0-10.6, casual driving 8.6-9.8.

Since the engine swap to the 3.5l, I'm averaging ~10.8L/100km's so over 600km's per tank. Do around 50km's per day at 100kmh, rest is between 50 and 80, ~450km's per week. I'd like to get it a wee bit lower, seeing fuel is a bit pricey at present. Tried a 7-11 fuel for a few weeks, definitely worse consumption on that compared to my usual United (BP, Shell and Caltex are the other way to what I drive in Cranbourne).

Getting around 12L/100km with mostly city driving

Also just a quick point, do you guys reset your full trip computer on every refill? This is more accurate rather than having a Average Litres/100 figure thats based on 20,000 km's!

This tank, consited of 350km's of city driving and around 150 of highway driving (80-100 zone) and my average fell to 11.8L/100k's. I was quite happy.

Also the VR-X's will use more fuel than the standard Magnas as well, with the whole extra 10 or so KWs and different tune set up.

But I called the mechanic and checked the car out, nothing is wrong, all 3 magnas in the family, all TJ's, Exec, ADvance and VR-X average around the city and suburbs around 13.0 - 14.0 litres/100. So are all 3 cars effed? I think not. If I was on the highway with those figures I'd be concerned.

hey guys
how much would a wheel alignment help with fuel economy?
I'm thinking my bad fuel economy is because of that

7.5-8.0L/100km average driving the Ralliart back today.

Filled it up in Melbourne (Shell 98), was at 1/2 when we got to the dog on the tuckerbox so filled it up again (BP 98), and now sitting outside my house it's just over 1/2 a tank. Manuals are much more fuel efficient, evidently.
What's that, roughly 900kms out of a tank?

I was about to ask weather the consumption was different between the manuals and auo's?

I have a feeling my increased consumption is caused from my semi effed auto lol Slips alot and requires alot more pedal force to get moving now then it used to. Won't last long now! Having said that the manual that i had did 730+ in the city to the tank. I miss the manual magna In the KF i usually get 600 IF im lucky. .

I was about to ask weather the consumption was different between the manuals and auo's?

Welll,just roughly,when mine was an auto ,i was getting 13-13.5 now with the manual its around 20 wtf..nah,,,its around 11-12 ....

i usually get 610 - 630 klms per tank around town. did a trip to halls gap last week, i got 730 klms on a tank that week. the run on the great ocean rd last sunday i got around 400 klms to a tank because i pushed the car so hard on the whole cruise.

Got 8.1l per 100kms on the way back from Melbourne.

Got there on 1 tank and got back on another full tank. Got 850kms out of the whole tank once we got back. Pretty good I reckon :)

Average around town sits between 9.8 and 10.3 average.

im hovering around the 12-13 with sydney peak hour traffic used to get 14+ before i did the plugs and leads

Sitting on 10.7L/100 over the past 2 tanks of fuel all around town driving :). Average speed around 40

So here's what i got out of 1 and a bit under 1/2 tanks:

http://img805.imageshack.us/img805/5915/photo0055e.th.jpg (http://img805.imageshack.us/i/photo0055e.jpg/)

Thought that was pretty good. Filled up with roughly 15L left in the tank, that was the result.

And yeah, my manual is a hell of a lot better on fuel than the Auto was. 10-11.5L/100km is my current average, verses my Auto which with the same driving would absolutely struggle to get below 12.5L/100km unless i drove like a granny with no passengers and 1/4 tank.

Getting around 12L/100km with mostly city driving

11.1L/100km on my last tank with 40% granny mode, I'll try for 100% granny mode driving this tank and see how it goes.

So here's what i got out of 1 and a bit under 1/2 tanks:

http://img805.imageshack.us/img805/5915/photo0055e.th.jpg (http://img805.imageshack.us/i/photo0055e.jpg/)

Thought that was pretty good. Filled up with roughly 15L left in the tank, that was the result.

And yeah, my manual is a hell of a lot better on fuel than the Auto was. 10-11.5L/100km is my current average, verses my Auto which with the same driving would absolutely struggle to get below 12.5L/100km unless i drove like a granny with no passengers and 1/4 tank.

Could you check your Average Speed?

Mine is 25.0 km.

It was around 50kph for that 1000km run, because at the end driving through Sydney ruined it.

Currently averaging around 9L/100km on the drive home from work, which i thought was pretty good considering i was only grannying it a little.

since my ECU reset on saturday my new average is 12.2! Got as low as 10.9 at one stage.

Sounds pretty good, 10-11L/100km is where mine is hovering around.
My current 11.6L/100km is attributed to the fact that i constantly let my engine rev under high throttle because it sounds uncannily like a V8 at the moment.

I just did an 1100km trip to Central NSW and back. The best I could manage was 14.7l/100km; with 3 people in the car, and quite a few sections of roadwork.

I put a new oxygen sensor in about 6000km ago, but around the city, I'm lucky to see it dip below 15.8-9l/100km.

I've got a set of 12 hole injectors to put in at the next oil change, any other suggestions?

Currently getting 11.3L/100km's on gas with the trip computer showing 9.9L/100km's.

I just did an 1100km trip to Central NSW and back. The best I could manage was 14.7l/100km; with 3 people in the car, and quite a few sections of roadwork.

I put a new oxygen sensor in about 6000km ago, but around the city, I'm lucky to see it dip below 15.8-9l/100km.

I've got a set of 12 hole injectors to put in at the next oil change, any other suggestions?
wheel alignment ?

01 tj vr-x auto on gas with a useable 68 litres i get around town 360-380kms driving normal cant do petrol on this one yet need injectors cleaned.... i have just picked up a 00 tj vr-x manual will be interesting to see what fuel consumption i get out of this one.... i think its very strange how fuel figueres are all over the place for everyone lets face it some figures of a full tank to 450kms to jump to 800kms is a huge difference....

2001 TJ Magna Wagon
3.5 V6 Auto
145,000km on the odo
Regularly serviced inc air filter etc



Stop-start driving in peak hour to work, I'm getting between 14.3 and 15.2 L/100km according to the trip computer.

Does this sound like something is out of whack?

2001 TJ Magna Wagon
3.5 V6 Auto
145,000km on the odo
Regularly serviced inc air filter etc


Stop-start driving in peak hour to work, I'm getting between 14.3 and 15.2 L/100km according to the trip computer.

Does this sound like something is out of whack?
If its stock, from experience maybe. O2 sensor ever changed? Whats the exhaust cond like? My GTV went upto 14l, muffler was shagged. Replaced and fuel economy went down....

2001 TJ Magna Wagon
3.5 V6 Auto
145,000km on the odo
Regularly serviced inc air filter etc



Stop-start driving in peak hour to work, I'm getting between 14.3 and 15.2 L/100km according to the trip computer.

Does this sound like something is out of whack?

If you are talking stop start as in move 100m then stop then another 100m then stop etc etc then no. If it's a bit more flowing then that your O2 sensor could be playing up. but yeah sounds very high for a fwd magna.

Not my car but Zahrims manual TH sports. o2 is fried, cbf installing replacement ATM.

14.0-15.8 freeway
15.9-17.9 city

:p cat is also fried due to overfueling.

Gave ben my spare o2 and giving in a spare cat to cambat this issue haha

Just bought my first Magna. Have had other Mitsi's in the past.
So far have driven to work and back for a week, 11.6 L/100. Now have driven from Adelaide to Tassie and have got 9.5 L/100, pretty happy with that considering there were full throttle overtaking spurts etc. Accidentally speeding too, not used to autos.
Great cars, I must say.

11.1L/100km on my last tank with 40% granny mode, I'll try for 100% granny mode driving this tank and see how it goes.

So new update and finally broke the 600km barrier. 10.8L/100KM

Chugging along in the RA at 9.6L/100 around town.

So impressed with this car, also it's running near 2 year old oil!

Yeah my city driving still nets me on average 13.5 l/100. I've gone through at least 7 tanks now since I bought it, some 3,000 Km's, and my average sits at 13.4 - 13.5, so thats my average.

So impressed with this car, also it's running near 2 year old oil!

and thats a good thing because...?

The old shitty oil has no bad affects on the car? I think that's a good thing

I have the TL as seen in the Avatar (Wagon 2003 - Auto) All city driving most trips being shorter that 20ks. When I have tested it is 13 to 14 liters per 100. We often have roof racks on too.
But went to Melbourne last Christmas - roof racks off - under 9 liters per 100.

My stock tj II gets about 700, but I live in Wollongong and there are numerous freeways here. My old TF, 3.0, which would have run straight over this car, would get 550 or 600 max, not sure what was done to the engine, bt it certainly wasn't standard. Nice lovell coils and kyb shocks with two stabilisers on the front made it very driveable. The Tf also seemed to coast down hills better, must have had a taller top gear

whats a tank ,how many litres , kilometers per litre please.tj wagon lpg 12.5 ks per litre @70c or 8litres per 100 ks el cheapo tsk tsk

Im still very impressed with my manual Ralliart. 9-10l/100km around town. 3 litres less than out 380 and better performance to boot.

Steve

I average 9.7L/100km from my '99 Magna TH.

About 8-9L/100km on motorways and 10-11L/100km for pure town driving. Driving pretty conservatively but not overly.

if im in town i get 11 litres per 100km

highway gets 8 litres per 100km

I still after 3 months get 14 liters per 100 kms.

It's cause I d 100% city driving and it's auto.

I am getting about just about 10L/100k at the moment, in city driving. I havent gotten a number for motorway driving but its definately better than that. I can definately get better than 600kms per tank if i was driving purely on motorways.

My brother recently got a manual magna that had been chipped and tuned, on the hour drive home, a mix of suburbia, traffic and motorways, his car was consistently 4L/100km better off than my auto magna. Mine is a 2000 model, his is a 2002. His also has significantly more power.

So if I got mine tuned for economy and saved 4L/100km it'd pay for itself within a year (I drive a lot though).

Yes I know his being manual would save him a bit, just making the point for anyone considering a good tune.

My brother recently got a manual magna that had been chipped and tuned, on the hour drive home, a mix of suburbia, traffic and motorways, his car was consistently 4L/100km better off than my auto magna. Mine is a 2000 model, his is a 2002. His also has significantly more power.

So if I got mine tuned for economy and saved 4L/100km it'd pay for itself within a year (I drive a lot though).

Yes I know his being manual would save him a bit, just making the point for anyone considering a good tune.

I have a 2000 TJ Magna, auto also, and I'm getting about 13.5L/100km, and that is with both highway and city driving. Not very good from my POV, but I also have a bad exhaust, which I have to get fixed up, so that might help a little.

Where can I get a magna tuned in Sydney?

Not sure where the previous owner got it done, will let you know if I come across it. You're best searching through the 3rd gen and nsw threads though

Not sure where the previous owner got it done, will let you know if I come across it. You're best searching through the 3rd gen and nsw threads though

Thanks, will do that when I have some time to troll through the threads.. :)

TJ MY02 Magna Sports 5spd Auto

Freeway driving almost exclusively, hilly terrain.

11L/100KM 91 RON ULP.

Pretty disappointing compared to other peoples results but I reckon a stock set of 16" alloys would bring that down to 10 easily.

Hi I have KL Verada 5 speed Auto
City driving 600km plus on tank before petrol light comes on
Standard tyres and rims
fuel concumtion showing on dash board 10.4 -- 10.8lt/100
I am happy sometimes i do push pedal but not very often...

JDM diamante 3l 6g72 Mivec, fuel consumption says 11-12km per litre sitting on 100km per hour constant throttle.
gets as low as 0.2km per litre at 6500rpm in second gear, about 120km per hour lol

I'm still getting around 13-13.5l/100. All city driving, stop and start. Avg speed is a mere 25 km/hr.

I find the people getting 10's and 11's etc, I'd love to know your average speed. The higher it is, the more faster your going and conversly your fuel should be lower. I would estimate an avg speed for you guys of 40km-50km/hr.

Drove to the Gold Coast earlier in the week, averaged 8.6l/100km with air-con on, full tank of fuel, and an average speed of 94.6km/h. Best fuel economy I've got since I purchased the car!

Just finished a trip from Mt Barker Sth Aus through Ouyen - Swan Hill - Bendigo - Ballarat and return the same way including running around the touristy thing. TE Sedan with 3.0ltr and auto.
Running Dual fuel, I emptied the LPG 66.7 ltr refilled for 642km's and 52ltr petrol for 560km's. Highway speed was 98 km/h on cruise.
Around home the LPG gives me 480km and the petrol 600km of freeway hills and city driving.

Can't remember how to break it down to ltr per 100 but whatever it is, I am pretty happy with these figures.

Formula is

(Litres used / kilometers travelled) * 100

2001 TJ Sports 5A Stock, just purchased, serviced at 165ks (now 171ks);full tank-refill method = 14.73l/100km. Driving was medium suburban roads with a country trip totalling 112kms at constant 95km/hr mostly. Perhaps a new fuel filter, new injectors, K&N filter element, oxygen sensor and a replacement muffler with Hotdog would help?

Just got back from 800km highway trip driving my Manual Ralliart with a fair amount of 110km speed limit.

9.5l/100 km versus 9.8l/100 km around town. The gearing in 5th is way too low!

I guess that is the trade off for responsiveness. The cruise control is fantastic when sitting on 2800rpm. Undulating country no issue in 5th. 380 auto on the other hand in and out of 4th with subsequent surging.

Reasonable tradeoff but an extra, higher 6th gear would be nice, say 2000rpm at 100km/hr?

Still amazed with urban economy.

Think I'm sitting on around.. 20l/100 or so ATM? Newly supercharged, and not being nice :P

Think I'm sitting on around.. 20l/100 or so ATM? Newly supercharged, and not being nice :P
Mines above its average atm too, new exhaust sound....

Yes, its quite clear that the higher the average speed, the better the economy (less stop start traffic).

Cause I've been lucky with traffic this week and lots of weekend driving around suburbs, still never left a 60zone, my Ratio fell to 12.1 l/100 which is really good.

I only ever see 10's when on a highway for a while.

With new tune averaging 9.2l/100 with half highway and half town driving and i'm certainly not gentle on the throttle! :D

Mechanically standard except for sports muffler ..... behaving myself on highway running premium can get as good as 7.5l/100k. Generally averaging 10 - 11 with mixed driving but don't often flog it either.

in my tl wagon for highway driving i average between 630km - 670km, tho the day i bought the car i drove it from brisbane to mackay, i filled up in brisbane got all the way to rocky and had 150km left in the tank when i got there.

I have noticed a improvement in my TW AWD since my little "accident", around town I'm getting 11.5-12.5 L per 100km, alot better then the 14-16 I was getting. On a recent trip, full car home to Cowra and back (over the blue mountains) averaged 8.1 l per 100km. Only thing I can think off is the battery was disconnected for a few weeks, resetting the computer, or they fixed up the mysterious hole in the fuel tank.
But I would not recommend crashing your car to improve the economy.

I have noticed a improvement in my TW AWD since my little "accident", around town I'm getting 11.5-12.5 L per 100km, alot better then the 14-16 I was getting. On a recent trip, full car home to Cowra and back (over the blue mountains) averaged 8.1 l per 100km. Only thing I can think off is the battery was disconnected for a few weeks, resetting the computer, or they fixed up the mysterious hole in the fuel tank.
But I would not recommend crashing your car to improve the economy.

See my post in AWD Fuel Consumption (http://www.aussiemagna.com/forums/showthread.php?t=83826&p=1429009&viewfull=1#post1429009). Me thinks it is battery disconnection together with new radiator (after a small accident).

And also in the AWD vs FWD Consumption thread, I mentioned that since taking it easy on the road, the car is now averaging 12.5/100 with the same route taken before.

Guys I mentioned before it helps to include the following when quoting a fuel economy figure:

Avg Litres/100Kms (were all doing this fine)
Avg Speed (this is missing and validates your claims for highway/city driving).

For me, I average 13.2/100km this week for work. Been stuck in traffic more than ever, all 60 zones and 50 zones and my Average Speed was 24km/hr.

Hence why my consumption is rooted.

On a different occassion, driving to Victor Harbour, 240+ Km round trip, averaged 10.2/100km with average speed of 45 km/hr.

Major difference.

The speed makes all the difference. Also, I reset the trip computer at the pump when I fill the car up, that way, its an independant result for each tank of fuel. Sure I can fill up, drive home for 3 km's at a constant 60km/hr, feather the throttle and not stop/start and average 7.1/100, but its not refelctive of my overall driving and that tank of fuel.

If we could add these to our answers I think you'd have a better basis for comparasson.

Well, had to replace light bulbs and so had to disconnect the battery and resetting the trip computer. I am now getting between 11.8 and 12.0 per 100kms. This is mainly due to driving behaviour. I am no longer accelerating off the lights and then slamming on the brakes 100m down the road. Just driving with traffic and taking the foot off the accelerator in anticipation of slowing/stopping.

Daily Trip:
Morning (8:30 - 9:15) - Home to daughter's school (1.3km of winding 50 zones and a bit of 25 zones) and then to work (3.8km of 50, 8.7km of 60, 6.8km of 70 and 0.5km of 80).
Afternoon (17:45 - 18:15) - Work to home (1.9km of 50, 9.6km of 60 and 4.5km of 70).
Ave speed is 34km/hr.
DTE: 540km.

Note that the ave speed was also 34km/hr when the usage was at 14.5L/100 on the same routes.

Stock 1997 TF Executive 4G64 Auto, most I have got was 620kms and the fuel light was starting to come on but not staying on. Also I do mainly country driving (60mins) everyday, but also about 30mins city driving everyday as I work in the city.

~600km/tank from mixed driving, give or take a bit. Aircon always on. 4cyl automatic TE.

Unless you're recording exactly how many litres you filled up with, and how many km you've travelled (so that a km/liter or litres/100km figure can be worked out) and under what conditions, simply saying you're doing a given distance per tankful doesn't mean much, especially given that different models have different fuel tank capacities.

Unless you're recording exactly how many litres you filled up with, and how many km you've travelled (so that a km/liter or litres/100km figure can be worked out) and under what conditions, simply saying you're doing a given distance per tankful doesn't mean much, especially given that different models have different fuel tank capacities.

Exactly. I get 540km to a tank in mix of suburban and city driving but my tank is only 65L in capacity.

My Kl verada gets 600km--620km out of tank

Been checking my fuel consumption lately after putting in some 98, which i hadn't used for a few years, first tank 30-city 70 highway i got 9.9L/100km's as the average for the whole tank.
2nd tank with a trip to Wollongong (lots of hill climbs back to Sydney) with my usual 30/70 commute i got to down to an average of 9.1 for the whole tank.

(i fill up with the same pump every week and do the calculations by my self with a calculator, also worth noting is i fill up every week at just under empty around 400km's on the trip meter so my figures would drop even more if i used the whole tank by reducing more weight)

wow :shock: ... and to think I hopped onto the forum because I thought there was something wrong with my car...

I haven't gone through 1 tank yet, but it looks like it will get about 300kms on a tank. Completely stock, mostly city / suburban driving so far.. about 14.5 litres / 100 km per the trip computer. BP Premium (95 Octane do dah)

Is the TW Wagon tank only 55 litres? The TS was 70 I think..

Anyway, I knew the mileage would be shocking, but wow... still love the car, but wow..

wow :shock: ... and to think I hopped onto the forum because I thought there was something wrong with my car...

I haven't gone through 1 tank yet, but it looks like it will get about 300kms on a tank. Completely stock, mostly city / suburban driving so far.. about 14.5 litres / 100 km per the trip computer. BP Premium (95 Octane do dah)

Is the TW Wagon tank only 55 litres? The TS was 70 I think..

Anyway, I knew the mileage would be shocking, but wow... still love the car, but wow..

Wagon tank is around 72 litres. That consumption is high, but not impossible
If you have a lead foot

Cool.. I filled it up when I collected the car, and it clicked off at 55 litres.. that's about the same as my Citroen C4 (55 litres.. 600-650kms in the city... diesel though, that's on a 7 seater.. diesel is awesome, except for the horrible noise :( ) so didn't want to try and overfill.. I'll have to fill it up again next week lol .. will try and aim for the 70 litres mark,...

No lead foot, just pushed it a couple of times, to check how the tippy works, but mostly suburban driving.. I have a suspicion the dealer put in E10 (only a little, perhaps to make sure I could drive out of the yard), so maybe that's annoying the machine? We'll find out soon enough..

Club Trophee huh? Nice one, my son.. Love those cars.. was thinking of fobbing off the C4 to wife for local duties, and getting one, but afraid of licence... lol Best to keep the speeding for the track I guess

Cool.. I filled it up when I collected the car, and it clicked off at 55 litres..
The fuel gauge is a little misleading. If the needle is around empty to 1/8th of a tank, that's normally around the 50-55 litre mark. The tanks are ~71l.

The fuel gauge is a little misleading. If the needle is around empty to 1/8th of a tank, that's normally around the 50-55 litre mark. The tanks are ~71l.

:facepalm: of course... i stalled the TS years ago (ran out of petrol) and it took 10-15 litres of fuel just to start it up.. so that's about right. :) ... thanks.

Anyway, did a fair bit of driving today, mostly highway and with a light foot. Gauge had moved back up to about 2/3 and having done 200kms is now reading just over half.. If it keeps up, that should be good for 400-420kms on a tank, which is about what I thought it would do.. not too bad..

I'm absolutely stoked with my TJ, averaged 6.8L/100km on the highway over a 300km duration today (the trip computer from fill-up to fill-up is within 0.4L accuracy too) and got 530km to 44.8L with an average speed of 71km/h, and about 100km of that was spirited driving through hills and peak hour traffic with heaps of overtaking. It's been the cheapest car on fuel I've ever had. In town it's a little thirstier at around 12-13L/100km but I'm not always light on the pedal either and usually average only 25km/h with that. My 07 Commodore averages 16L/100km under the same town driving conditions.
I should also add that I use Shell V-Power 98ron unleaded and I also ran some fuel cleaner through the tank plus did a throttle body clean on it too

Cool.. I filled it up when I collected the car, and it clicked off at 55 litres.. that's about the same as my Citroen C4 (55 litres.. 600-650kms in the city... diesel though, that's on a 7 seater.. diesel is awesome, except for the horrible noise :( ) so didn't want to try and overfill.. I'll have to fill it up again next week lol .. will try and aim for the 70 litres mark,...

No lead foot, just pushed it a couple of times, to check how the tippy works, but mostly suburban driving.. I have a suspicion the dealer put in E10 (only a little, perhaps to make sure I could drive out of the yard), so maybe that's annoying the machine? We'll find out soon enough..

Club Trophee huh? Nice one, my son.. Love those cars.. was thinking of fobbing off the C4 to wife for local duties, and getting one, but afraid of licence... lol Best to keep the speeding for the track I guess

Great thing about the clio is that you can have fun while keeping it sensible

I have a 3.5 TH Sports, 2.5" cat back exhaust with a k&n panel filter, no CAI. 12inch sub and amp in boot and I get 700-750km per tank, running premium. I do a mixture of highway and stop start driving. Generally she sits on about 9l/100km.

Th TJ advance wagoneer gets about 13l/100 around town and as good as 8.6 on the highway - (new england).

interestingly i can see no real difference in e10 vs 91. should be around 3%! pretty go milage for a 3.5 l v6. the rellies subaru brumby gets 9.3 on the same trip! and it s**ks up hills!

Stock TH wagon - I get 560 regularly on standard unleaded (doesn't go any further on premium - just responds better) but as it has 340,000km I assume I should include the amount of oil blow by as "fuel" to - about 250Ml a tank.

TH Wagon. No engine / exhaust mods. 17" wheels, lowered 30mm (no pics yet)

Per tank I get 450-550kms around town, and 700kms on highway.

If I drive like a w*#%er, which I may on occassion do, economy takes a serious nose dive. By the same token, If I sit at 105kms/hr on the highway, economy sits at 8.5L/100kms. Not bad for a 2000 model V6 wagon.

Just went for a drive to Moonta, 100km/hr most of the way, few 80 zones and some 60 zones getting out of surburbia. Average speed was 60km/hr per trip computer, scored a beauty of 8.6 l/100km. Even the wife was impressed as it regularly for city driving sits on 13l/100 with always soft driving.

Highway sure makes a difference. I saw at 110 k/hr it sat on 2,050 RPM in 4th (4 speed of course).

Car is a TJ Series 2 Advance 3.5ltr 4 speed.

Boosty

Went up to the Murray and back averaged 8.4lt/100 pretty ordinary i reckon, my V8 commodore can match it on the same trip with twice the power.

Went up to the Murray and back averaged 8.4lt/100 pretty ordinary i reckon, my V8 commodore can match it on the same trip with twice the power.

Well the v8 should if its highway driving..

Well the v8 should if its highway driving..

Why ?

Why ?

much more torque means less throttle is needed to keep the car going. + best fuel eco is closer to 100 in a v8 where in a v6 its closer to 80.

much more torque means less throttle is needed to keep the car going. + best fuel eco is closer to 100 in a v8 where in a v6 its closer to 80.

Hayden, i cant see the most economical speed for a commodore being 100. At these speeds, air resistance and rolling resistance play the most crucial part. The boxy commodore will have a v similar air resistance figure to the 380 so the most economical speed for the commodore will be around 80-90 too.

Yeh they have more torque but that is because of the large capacity which needs more fuel to feed 6.0ltr, the most economical speed would be in the 60-80km range in most cars as their in top gear and pulling low revs with low wind resistance,

Why ?

Why V8?

A F1 Broadcaster years ago described the engine design problem - V8 - V10 V12 - it comes down to How bigger bang you can make (Cylinder size) vs how often you can make it (stroke & number of cylinders) - For formula 1 you wanted the "max" in power; - for fuel economy you want barely the least to turn over a high gear.

Now complicate this with the need to not run an engine too lean or it will burn up - and a V8 you would think would need more fuel with 2 more cylinders - but a v6 will "stall" out sooner than a v8 as it's "bang" ratio is lower and/or the bang is a bit bigger to compensate - so it's final drive ratio must be lower and/or uses more fuel to make the same ratio..

So a V8 with a really tall final gear will be able to make a lot of small bangs just keeping the car in motion which is what you want for hyper mile driving.

So a V12 would be better again in theory - but you need modern fuel management - not like my Jaguar Xj-S....

Had a bit of an interesting experience with the '97 TF and fuel.

First got it, 1/4 tank of random fuel
Ran down to 1/8, then filled up with apco premium
Ran that down to 1/8 (460km) then filled half up with BP Ultimate - slightly sharper response but not too much
Down to 1/8, filled up with $30 of BP Ultimate, at $15 the bloody thing spat fuel back out at me, thought my fuel sender was stuffed at that point
Again, down to 1/8 and filled it up with fuel injector cleaner and VPower - Wow, car feels like a bullet now and I got ~200kms from 1/4 tank!

Really need to sit down and figure out what the hell is going on.

If you're working off the fuel guage, the results are essentially meaningless. Unless you completely fill the tank each time and note both how much fuel the bowser (or trip computer) says was used and how far you went, you'll never get accurate results. having said that, though, I've encountered some pretty inaccurate fuel bowsers, too.

I get about 570-600km to a tank at the moment (50/50 Suburban & Semi-congested Motorway). I sheared an ISC bolt after cleaning the TB and ISC, so subsequently its running a bit rich and surging slightly. Its currently secured with one bolt and Loctite non-hardening sealant until I get it fixed. Prior to that, I was getting about 600-620km from a tank.

If you're working off the fuel guage, the results are essentially meaningless. Unless you completely fill the tank each time and note both how much fuel the bowser (or trip computer) says was used and how far you went, you'll never get accurate results. having said that, though, I've encountered some pretty inaccurate fuel bowsers, too.

When my fuel gauge died I only ever filled my tank to the absolute brim when I filled up, then reset my fuel stats before I left the station and ran off the fuel total amount and k's travelled. That is by far the most accurate way to determine your mileage I've found.

I have to say there are some wildy varying stats in this thread! In my 3L Manual TH wagon i got 790kms out of a tank of 95 Caltex Vortex. 95% Highway, 5% city driving. I couldn't believe it. In my 3.5L TF Sports Manual i get 550kms tops because i do all city driving for work now :(

I just completed a 4000km trip through central QLD in my 4sp, 3.5 TJ wagon. There was only two of us on this trip but the back was loaded up with allsorts of camping paraphernalia. We travelled in "chortle" mode which means a constant 90kmh with no aircon and returned an average of 7.7l/100km which is 850-900km per tank. Other factors were flat and straight roads, fresh engine oil (including wynns engine treatment....thanks Mal), mostly 91 ron ULP (trip was on a fairly tight budget), the tyres were 32psi cold (I thought they were higher but checked them when hot.....my bad), and windows open. We passed through numerous towns including some big centres like Townsville and Rocky and were stopped for prolonged periods 1/2 dozen times at major roadworks but even with that I would say 95% was open highway. All in all am very happy with the outcome.

That's good for a 4sp

Recently changed the air filter, added a bottle of injector cleaner and 100ml of Pro-ma MBL8 and managed 9.4l/100km from a 14.3l/100km average.
Stoked :happy:
3.5L 4 speed Automatic Wagon.

Whats your average speed say on the computer??

just gotta service which totalled ~$1400
Belts, throttle clean, tyres (didnt actually ask but they were bold) etc..

And my fuel is still on 13.8L/100km with an average speed of 31kmph !
I gotta VRX 3.5 5 speed tiptronic left in auto all the time. Does anyone know if its my gearbox or something thats using a lot??

Around 500KM till empty tank, using auto all the time with 18 inch alloys..

TE magna 1996. Using 15 inch would be better but would not complain using 18 inch.

i hope this counts.
603 k's to a full tank on lpg. highway\tollway, mixed outer city driving

motor is stock as can be. has just gotten a major service and found my timing at crank was a tooth out.
paper air filter, stock exhaust with a hole in it

lpg system is nothing more than a pissy mixer ring setup too. i was thinking of getting it tuned. not anymore if it can get that!

petrol.. i havent run a tank through honestly yet

Silver, that doesn't count in my opinion.

If your tank takes 10L of fuel, then you're getting marvellous economy. if your tank is 100L then it sucks.
Even if you said the same thing about petrol, I don't know what the tank size is on a TE compared to my TJ or how full or not full you had it.

Really, if anyone wants to measure fuel economy, the only way to do it is to fill the tank, record kms or reset trip meter, do your driving, then fill the tank and compare how many litres (L) it took to fill and home many km you drove. Divide the Ls by Kms, times 100 and you will get mileage in L / 100km.

FYI "filling" the tank can have a variance - the fuel will bubble up and shut off the pump quick one day, but overflow the next time. So repeat the process for 2 or 3 tanks and you'll have an average that is quite accurate.

Besides which, I have no chance of getting close to 600kms from a tank in my Magna, so I'm envious. :)

I get 12L/100km in my KJII GTV, with regular driving in medium to heavy traffic. So about 540km per tank, assuming the tank is 65L. It's 60-65 anyway.
If I hit the highway and hypermile, I can get 9L/100km. So in perfect conditions, 720km. But I voted 501-550 as that's what I average.

Silver, that doesn't count in my opinion.

If your tank takes 10L of fuel, then you're getting marvellous economy. if your tank is 100L then it sucks.
Even if you said the same thing about petrol, I don't know what the tank size is on a TE compared to my TJ or how full or not full you had it.

Really, if anyone wants to measure fuel economy, the only way to do it is to fill the tank, record kms or reset trip meter, do your driving, then fill the tank and compare how many litres (L) it took to fill and home many km you drove. Divide the Ls by Kms, times 100 and you will get mileage in L / 100km.

FYI "filling" the tank can have a variance - the fuel will bubble up and shut off the pump quick one day, but overflow the next time. So repeat the process for 2 or 3 tanks and you'll have an average that is quite accurate.

Besides which, I have no chance of getting close to 600kms from a tank in my Magna, so I'm envious. :)

oops forgot to mention my lpg tank is 65 litres useable.
(80 litres water capacity, can only fill to 80% on a lpg tank for safety reasons. has a valve in it to prevent overflowing too so it cant take more than it should)
and when i fill. i reset trip meter as i dont have a trip comp or clock in mine, and go to dead empty. and it takes 65 litres to refill.

this tank is looking to be the same kilometers too. to twice in a row isnt bad.

true to a point. i am yet to actually fill my petrol tank but going by what the guage claims i get around 120k's to a 1\4 tank. but i havent filled it and refilled afterwards. to confirm or deny how accurate it is yet

in all honesty. coming from a ford falcon which was just 50kg's heavier the te tromps it in fuel economy
keep in mind i only have a high k 3 litre v6, so its gotta work harder than the falcon ever did at 110k's

I get 12L/100km in my KJII GTV, with regular driving in medium to heavy traffic. So about 540km per tank, assuming the tank is 65L. It's 60-65 anyway.
If I hit the highway and hypermile, I can get 9L/100km. So in perfect conditions, 720km. But I voted 501-550 as that's what I average.

Your tank is 71litres. The awd tanks are 65litres. I am now getting 520kms per tank wigh 65 tank. All suburban and city peak hour driving.

oops forgot to mention my lpg tank is 65 litres useable.
(80 litres water capacity, can only fill to 80% on a lpg tank for safety reasons. has a valve in it to prevent overflowing too so it cant take more than it should)
and when i fill. i reset trip meter as i dont have a trip comp or clock in mine, and go to dead empty. and it takes 65 litres to refill.


The best I get out of 50ltrs of lpg is 400kms of highway driving and maybe 300kms around town so even though it's a smaller engine you are doing ok.

Your tank is 71litres. The awd tanks are 65litres. I am now getting 520kms per tank wigh 65 tank. All suburban and city peak hour driving.

71, really? So when it reads below E and I fill it up to basically overflowing and only fill like 55+ litres, it still had another 15L in it? :/

Correct!

Jeeeez they're conservative then :/

Interesting. So when it reads empty, I can still do plenty of driving before conking out. Not that I'm going to try that....

Wow.
Averaging 15.4l/100km, on grandma mode.
I think something must be wrong.... "99 verada sedan

Jeeeez they're conservative then :/

I once drove for 60kms after the light appeared and filled somewhere in the high 50s or low 60s.

Wow.
Averaging 15.4l/100km, on grandma mode.
I think something must be wrong.... "99 verada sedan
That's definitely on the high side.

O2 sensor is a common culprit for high fuel usage, as they often give any time after the 100,000km mark. They're not a service item so they're often left unreplaced.

If you're concerned about your fuel economy, have a search around the forums, as it's been discussed a few times previously.

Wow.
Averaging 15.4l/100km, on grandma mode.
I think something must be wrong.... "99 verada sedan
Yes, definitely. Oxygen sensor, stuffed cat etc.

I have the heaviest 3rd gen around and am getting 520kms/tank and averaging 12.4. Although some weeks, It gets to 540kms/tank which equates to approx 12L/100kms.

Following on from my 15.4l/100km post,

very new to the verada scene, worth LPG'ing a 200,000km '99 or is it a lost cause?

i hope this counts.
603 k's to a full tank on lpg. highway\tollway, mixed outer city driving


Even for highway driving - that's fantastic fuel economy - especially for a mixer system.

I drive mostly in the inner and outer city suburbs and struggle to get under 15L/100km for lpg. I do have a 3.5L and 18" wheels but I've got a manual which is meant to be a bit economical. I don't drive like a granny and give it the odd boot here and there so I suspect that may be contributing to my economy. Recently replaced a stuffed cat so the fuel usage may a bit drop soon.

Petrol is around 12L/100km if I drive very tame. Start pushing these cars and boy do they drink fuel. I did a mountain run and a few harder launches and within 150km's I chewed through 30L of precious petrol.

Just went on a touring holiday with the missus.

Did a total of 1522KM over 5 days. Used a total of 160.83 Litres.

Got 9.46km per Litre OR 10.56L/100km.

Total cost of fuel - $241.25

Average speed would have been around 115km/h. Had a full boot and full backseat just to window line - Sub, Amp, Big esky, Chairs, table, tent, clothes etc.


Car is a 1998 TF Magna 6G72 with currently 194XXXkm
Mods include: K&N Panel Filter, TJ Sport rear Muffler, 2.5" Exhaust. Tyres all running 40PSI.


These results may not seem as great as I was expecting, However, There was that much weight in the rear that on standard suspension it was tucking tyre under the guard on the rear. Also car went perfect, didn't miss a beat or use any oil.