I just finished off a full tank of petrol in my car, and I had only done 400k's of city driving. :S Mind you I am what would be called an "enthusiastic" driver :D


Is this normal consumption for the car?? I just though that 400 k's is very low for a 63 litre tank, but everyone reckons that the 4cly is very inefficient :(


Edit : car is not a manaul :p

yeh thats about it mate

they are inefficient and if you do alot of stor start driving too

yep if u got the 2.6 there pritty bad for fuel, mines shocking the way i drive :roll: . i was looking at the stats for my car and the new ralliart magna and for fuel is rufly the same (ralliart-city 10.5, Highway 7.6) (mine- City, 10 Highway 7.2)
There good motors :p ,they just use alot :cry:

l8r

Don’t use the capacity of the tank to judge your fuel consumption
You'll find your petrol gauge to hide an extra 15 to 20L after the E

I've been monitoring my fuel consumption constantly since August & have had readings from 13.9L's per 100k (43L - 314K) & 10L per 100k (40L - 400K)

The only way to really know your fuel economy is to fill up your tank to the top, reset your trip meter & from then on fill your tank up fully & then compare the amount that it took to fill, compared to your trip meter.

On average I've found that from F - E on my gauge is about 45L.
Now if you get 400k out of 45L, that’s fairly decent for city driving (aporx 11.25L per 100K) considering the age of the car & everything else.

My car is known to chew a lot of fuel & the majority of 2.6l Astrons do from what I've heard, but you'll find that your last fill up wasn't 63L of petrol, closer to 45 or so, which means it wasn't as poor economically wise as you thought.

yeah same old story here!

i somehow managed to once finish 10 litres for a trip not longer than 20 kays!!! driving a bit like a hoon

and yeah when e comes up i have noticed there is a good 5 to 10 litres in there!

but yeah it's pretty bad in fuel consumption!

my ks 3lt v6 gets 450 to the tank im slightly enthusiastic but most of the time i drive like a granny 8)

Nah when the fuel gauge is on empty I have got 20 litres left in reserve.

My car sorta stopped due to lack of fuel, hence my accuracy :p


What sorta impact do you think an K&N filter will have on economy?

i think my tank is about 65-70 litres, i had run out of gas and filled up on optimax and it cost 75$!!!

depends on the state of your engine as well. If it's worn out it'll prob chew through a bit more. My V6 manual gets 10L per hundred without fail and thats with the odd run from some punter commodore and when a sharp bend looks tempting

haha. magna meet i averaged 1.5 full tanks of optimax per day 8)

close to 90L per day we used on that event :oops: haha.. damn, my pocket hurt after that :p

before i got a 'ecno' map that i use when driving long distances, i use to only get 290km @ 200km/hour now i can get close to 550km @ 200km/hour 8)

i love the haltech :D

(mine- City, 10 Highway 7.2)

Are they actual numbers youve experienced? or just what they were supposed to get new?

Since ive got my car ive been doing many things in terms of making it run better, and now im mot sure what i get in town (i estimate maybe 12 or 13 k/100k and i know on the highway i get 8.9l/100ks.

Id like to get better economy, but the only things ive heard of just cut fuel and therefor kill power...

:cool:
I just finished off a full tank of petrol in my car, and I had only done 400k's of city driving. :S Mind you I am what would be called an "enthusiastic" driver :D


Is this normal consumption for the car?? I just though that 400 k's is very low for a 63 litre tank, but everyone reckons that the 4cly is very inefficient :(


Edit : car is not a manaul :p
Hi
Yes they will use a bit of fuel if you gun them a bit,but what vehicle doesnt?
It does seem a bit excessive though.
I have a TR Auto Wagon which is a 2.6ltr .
The fuel tank holds 71ltrs,with which I get between 520 to 620klm per tank combining around town and highway driving.
The vehicle is driven normally and I cruise at 110klm on the highway.
I purchased the wagon in December 2000, had it for only 20mins and the timing chain started to rattle.
I took it back to the garage and they replaced it under warranty.
When I got the vehicle back I immediatley replaced the dizzie cap,rotor button,spark plugs and leads even though some items did not need replacing.
Check your spark plug gap and make sure it conforms to specs.
The vehicle had 124,000klm on it when purchased.
Oil and filters are regularly replaced at 5000klm intervals by myself.
I use Mobil XHP Plus engine oil as recommended by the local Mitsubishi Dealer.
Over the 4 year period I have had it I have had to fit a new computer ($540) and oil pump ($720).
At Easter time this year I replaced the cam shaft seal and fitted new valve stem oil seals as well as hydraulic lash adjusters (lifters).
I used compressed air to hold the valves up.
The wagon now has now done 173,000klm.
It runs like a dream and is great to travel in.
I would suggest that you look at your spark plugs,dizzie cap, rotor button and plug leads.
Change your oil and filter and use a 15W/40 oil.
I also have a TS V6 3.0ltr auto Wagon which gets the same treatment as the TR and it regularly returns between 520-620klm per 71 ltr tank of fuel.
I purchased the TS wagon in April 2003 and it had only 96000 geniune klm on the clock.
It now has 113000klm to date on the speedo.
Magna's are not the most fuel efficient car around but they are good quality vehicles just the same.
If you get under it a bit it like any other vehicle starts to use the fuel .
PS: I have been told to use NGK Spark Plugs by the local Mitsubishi Dealer.
Not sure why.
Can anyone shed some light on this one?

i've had a few gen'2 auto and manuals and most over 200'000km on the clock.
I run from full to empty, often on long trips and I always reset the trip meter when I refill. I drive till the low fuel light comes on and most fills are around 55L.
These are the magnas I have tested for highway economy, all were 4cyl EFI
91 TR manual 212'000km, 550km a tank
93 TR auto wagon 187'000km, 450km a tank
93 TR manual 238'000km 550km a tank
94 TS manual 260'000km 650km a tank
I tend to "drive" rather than just opperate the car and I also mostly travel on open roads in hilly country. :D So most people should get better economy than this.

my TR auto 4cylinder
before extractors got 11-12 Litres/100kms
after extractors get 12-13 LItres/100kms

plus i probably drive in a rather enthusiastic manner

What would be some of the more common things to check if ur getting lower than average full economy?

From F to E I'd be lucky to get 400km's in my 3L V6 TS with 230K on the clock.

from my experience with the magnas like most cars the fuel economy can be badly affected by poor spark. on a 2.6 make sure that the plug on top of the distributor for the crank angle sensor is free of dirt and corossion also check the condition of the distributor cap check for oil leaking into the distributor (common on 2.6L magnas) and check the condition/resistance of the leads (should be under 8K ohms per ft, new leads are about 3K ohms per foot) and spark plug condition. also check the base timing (13 deg btdc on 2.6L)
If your lifters tap then the affected cylinders aren't breathing properly, replace lifters and improve thermal efficiency and economy.
other than that all you can do is make sure the EFI is in good condition, that the oxygen sensor is good and the mixtures are correct. mixtures have to be done on a gas analyser.

EDIT
TR sedan tank: 64L
TR wagon tank: 71L

my fuel econnomy is crap, i get about 50k's out of ~10l

though i can garentee it has something to do with the way i drive :D

before the turbo i used to get 400-440ks to a tank thats with some mods pod, extractors, fule presure regulateor, greddy ecu and a few other bits and bobs. now i get SFA like 300ks to a tank and thats only giving it a bit of stick every now and then.

Don’t use the capacity of the tank to judge your fuel consumption
You'll find your petrol gauge to hide an extra 15 to 20L after the E

The only way to really know your fuel economy is to fill up your tank to the top, reset your trip meter & from then on fill your tank up fully & then compare the amount that it took to fill, compared to your trip meter.
HAHA, i drove over 50-60km with the fuel empty light on

my stats using your method that i've quoted

these are approximate (sometimes it's better, sometimes it's worse - i think it depends on the fuel quality) i use premium from now on cos i get further... so it works out cheaper

Running off premium: 400km to 55L = 13.75L/100km
Running off Normal ULP: 320km to 55L = 17.19L/100km
Running off Leaded: 360km to 55L = 15.27L/100km (this was with my old leaded motor... the motor was a bit tired too)

as soon as i start flogging it, i can expect it to drink the fuel and watch my needle move to empty... one time i got about 260km off 55L and that's using premium...

When i first bought my car i was getting 250km to a 60 litre tank! Then i realised OD was off so i turned that on and it jumped to 350, then i got my car serviced and it jumped to 600! Then lately it went back down to around 400, replace sparkys and leads/distributer and now up around 450-490, getting my car serviced as we speak, hopefully get back up to the 600km mark, would you guys say a fuel filter would effect economy alot? cuz apparently mine is destroyed (i knew it for ages, always when i fill up straight away itr runs alot better)

Spark plugs make a huge difference in the 2.6 Astrons. I went to a hotter plug as the one the engine builder used where colder type. Feul economy is worse for it.

I have mentioned this before but I borrwed a XR8 from work and got better fuel econmy out of it than the TR !

would you guys say a fuel filter would effect economy alot? cuz apparently mine is destroyed (i knew it for ages, always when i fill up straight away itr runs alot better)

Leigh it depends on how the filter is stuffed, if it works properly and blocks up like it should then when it gets too much crap in it and starts to restrict flow then it can actually improve fuel economy as it makes the car run lean, but this can damage the motor.
If the filter element was broken and letting dirt past it then this could cause all sorts of problems with the injectors and fuel pressure regulator.
I haven't heard of a new fuel filter giving a car better fuel economy.

Leigh it depends on how the filter is stuffed, if it works properly and blocks up like it should then when it gets too much crap in it and starts to restrict flow then it can actually improve fuel economy as it makes the car run lean, but this can damage the motor.
If the filter element was broken and letting dirt past it then this could cause all sorts of problems with the injectors and fuel pressure regulator.
I haven't heard of a new fuel filter giving a car better fuel economy.

Yeh the mechanic told me it wont affect economy, but i'll see a performance increase, and after my service, she's heaps quicker :D

What would be some of the more common things to check if ur getting lower than average full economy?

From F to E I'd be lucky to get 400km's in my 3L V6 TS with 230K on the clock.


I get between 520 - 620klm per tank of fuel regularly from my V6 TS 1994 Wagon.
The vehicle has travelled 113000 geniune kilometres.
I have been told by the local Mitsubishi dealer that a cause of heavy fuel consumption can be a faulty oxygen sensor.
Not being up with this sort of technology I cant confirm the accuracy of this statement.
However the dealer seemed convinced that this can be one of the causes.
He told me that when starting the vehicle from cold if the performance is sluggish then the oxygen sensor is faulty. :redface:

my TR auto 4cylinder
before extractors got 11-12 Litres/100kms
after extractors get 12-13 LItres/100kms

plus i probably drive in a rather enthusiastic manner
Extractors can give you better fuel consumption if you drive your car normally because it breaths better, I might be wrong but this is what the dude said after I got mine on, but if you start flogging it your going to eat more
I get about 9.5litre/100km in mine when I drive normally around town but when I flog it about 17litres

hence my statement "in an enthusiastic manner".
anyway from what ive heard the 2.6's chew thru more fuel for any engine mod without terribly great power increase. especially the autos. thats why ive been thinking about an adjustable fuel pressure regulator to see if i can get it to behave itself.