Now that I own my 2nd 3rd gen, I've been starting to wonder why the fuel consumption is so much higher in the TL the what the TJ was.

So was doing some research and came across this.

2003 TL VR-X Man
CO2 Emissions 274

Fuel Urban (l/100km) 10.5

Fuel Extra Urban (l/100km) 7.4

Fuel Combined (l/100km) 11.6

2000 TJ VR-X Man
Fuel Urban (l/100km) 10.0

Fuel Extra Urban (l/100km) 7.2

Fuel Combined (l/100km) 8.2

Why is there such a difference in fuel consumption claims by the ADR when really they are pretty much the same car?

Discuss

TL is heavier?

its a heavier car... and not as cool :P

2 different test, at different times, under different conditions by different drivers...?

nah they're done in testing facilities...but the test could've changed i guess.

Weight
TL: 1532
TJ: 1493

that make such a difference?

Could you post where you got these figures, its not that I doubt the figures themselves, its just that the measuring standards on the combined has changed, I'm pretty sure.

I thought a Car salesperson might have known that one.

As for the City/highway figures, weight seems like the logical difference.

figures from redbook and the greenmetre,

yeah I knew the testing changed as I said, but can't remember when,

This link says that ADR tests are suspect anyway...and the tests may change to represnt changing conditions...here (http://www.mynrma.com.au/cps/rde/xchg/mynrma/hs.xsl/fuel_labels.htm)

Yes wether you can obtain those figures has always been abit of a debate, but the question still remains why jump neally 3l/100 for 40kg? thats like putting half a person in the car.

I think the fact that the combined figure is higher than the urban figure is more suspect than that lol

Those fuel consumption figures are reasonably accurate for me, I get around 11.3L/100km with pretty much just urban driving, and that's without behind too granddaddy on the throttle. If I was sub 11s wouldn't be hard.

ADR81/00 was revised in 2002 to reflect Australia’s adoption of emissions standards
and test procedures set down by the United Nations Economic Commission for Europe
(UN ECE). The revised ADR (ADR81/01) took effect from July 2003.

Source (http://www.ephc.gov.au/ltec/pdfs/ADR_81_01_Discussion_Paper.pdf)

suppose answers my question.

Bull the 2000 model could do 7.2L/100kms doing anything other than cruising in 5th at 60km/h. You're talking about a 3.5L V6 so short geared it's doing ~2850rpm by 110km/h.

lmao how the crap is it possible to get a higher combined than either of the urban or country figures... just doesnt make sense.

Ridiculous, Boozers TL VRX gets like 10.5L doing all sorts of driving.

2003 TL VR-X Man
CO2 Emissions 274

Fuel Urban (l/100km) 10.5

Fuel Extra Urban (l/100km) 7.4

Fuel Combined (l/100km) 11.6
See bold, judging from these figures i'm prepared to throw their measurement system out of the window, how do you get a higher fuel consumption combined, than pure urban driving? doesn't make any sense.

But to answer your original post, yes they are nearly an identical car, and thus under the same driving conditions should be getting very similar results. The only thing i can think of, is that there may be something wrong with the TL (not so much wrong as in broken), such as a dodgy o2 sensor, or needs a service, or needs new/better quality spark plugs/leads etc. a lot of possibilities. Somewhere something is different, the fun part is finding what :P.


Bull the 2000 model could do 7.2L/100kms doing anything other than cruising in 5th at 60km/h. You're talking about a 3.5L V6 so short geared it's doing ~2850rpm by 110km/h.
I was averaging 6L/100kms on the freeway (110km/h, dead straight, no aircon). That was the 4 spd auto though.

i'm getting anywhere from 10's on highway to 13's around town, more if i strap it.

i'm getting anywhere from 10's on highway to 13's around town, more if i strap it.
Way too high. I'd be looking at the usual suspects, as mentioned above, like o2 sensor, spark leads/plugs, distributor. Maybe try some wynns spitfire injector cleaner, or try a tank of premium see if that makes any difference. Try to narrow down where it is.

Serious? Ouch. High 8s/low 9s on sustained highway running and max 12.5 in the city for my TJ.

I get into the 9's highway and 12.9 round town, really consistent now
yours should be better?

Yep those figures are wrong, somebody cant do math.

Have you changed the wheel size (rolling diameter) Scotty?

You may be getting some erroneous readings. :D

nah no change in wheel size brian...I do have the NZ vrx intake on, a panel filter, plugs and leads are good, getting close to the major service though, its prob reflected to with the way i drive, premium does nothing really.

Premium totally useless for these yep, well covered previously.

nah no change in wheel size brian...I do have the NZ vrx intake on, a panel filter, plugs and leads are good, getting close to the major service though, its prob reflected to with the way i drive, premium does nothing really.

You do know the accellerator has positions other than all the way down and all the way up???? lol

You do know the accellerator has positions other than all the way down and all the way up???? lol

Maybe he had the same driving instructor as buuster??!!! :bowrofl:

You do know the accellerator has positions other than all the way down and all the way up???? lol

You mean its not an on/off button? :nuts:

Might explain why I am averaging 13.9 liters per 100k's in a manual TJ... hmmmn. lol

maybe you need to drive around in 5th gear all the time like the autos do

I get into the 9's highway and 12.9 round town, really consistent now
yours should be better?

That's about what I get from my VR-X AWD, around town is 13-14, but they are all short trips and I live in the "hills" part of town. Highway is around the low 9's but car is always loaded but the misses managed to get down to low 8's coming back from Canberra (just her in the car) the other week. must be these lead shoes I have :shock:

I get 12 K / litre out of the Falcon







But only if I push it for the last few K's lol :D

You do know the accellerator has positions other than all the way down and all the way up???? lol

I call BS lol

I was getting approx 14-15L/110km in my Manual 3.0L TF lol

Another country heard from...

My Diamante gets 16-17 mpg around town and about 20 on the highway. I use premium fuel.

get a supercarger scotty..

I average 10l/100k's boosting to and from work in traffic, on the highway i get down into the 7's crusing at 110

get a supercarger scotty..

I average 10l/100k's boosting to and from work in traffic, on the highway i get down into the 7's crusing at 110


Yeah but when ya factor in the tickets its still pricey :P lol :D

get a supercarger scotty..

I average 10l/100k's boosting to and from work in traffic, on the highway i get down into the 7's crusing at 110


Way ahead of you there pete. :D

ive got a 05 vrx manual. out on the h/way i can get consistent 9.2l/100k. my old tj auto was good for 8.2l/100k.