Fuel Economy - What do you get out of a tank? (3rd gens only)

[GTVLAD79]

Im getting 350km to a tank (96 TE 3L auto) with standard unleaded if Im lucky.

Shit man, there is something seriously up there!
Every 3.5 ive had, 1 manual and two autos, 4/5spds have gotten more than that! Even on hard foot down runs......
Tried something as simple as running a good injector cleanor into it?
Reset the ECU?
Air filter isnt filthy is it? Fuel filter need changing? Any idea when the plugs were done?

[tww]

This was me on Wednesday



She needed 58.78 litres. Had done a bit of a highway run though, 270km's down to Geelong and back. Filled it with 98 to see if there would be any difference and she is just under half full with 380kms on the trip meter. But it's been a different last couple of days to usual, lot of highway driving. I'll drop more 98 in over the next 2-3 fills to see if there is a true difference.

Long term average over last 90 tankfulls is 10.390l/100km's.

Regards, Tony

[mjd26]

I'll drop more 98 in over the next 2-3 fills to see if there is a true difference.

Long standing opinion says no.
I also did dyno testing on Ultimate 98 with octane booster versus standard 91, absolutely no difference.

[Linz]

back then i had a stock TJ 3.5 and used to get 300 km's on gas. drove her pretty hard. But hey if i wanted to save money on fuel i would have bought a bloody barina!

[Life]

This was me on Wednesday



She needed 58.78 litres. Had done a bit of a highway run though, 270km's down to Geelong and back. Filled it with 98 to see if there would be any difference and she is just under half full with 380kms on the trip meter. But it's been a different last couple of days to usual, lot of highway driving. I'll drop more 98 in over the next 2-3 fills to see if there is a true difference.

Long term average over last 90 tankfulls is 10.390l/100km's.

Regards, Tony

Theres an invisiible notch there I've had mine lots lower... Tank takes 71L on FWD's.

[IainH]

Shit man, there is something seriously up there!
Every 3.5 ive had, 1 manual and two autos, 4/5spds have gotten more than that! Even on hard foot down runs......
Tried something as simple as running a good injector cleanor into it?
Reset the ECU?
Air filter isnt filthy is it? Fuel filter need changing? Any idea when the plugs were done?

Not much of that means a lot to me (I know computers, not card =P)

Looking over service history since I bought it (year ago) Ive had the air filters replaced bout 4 months ago and some oil filters/flush done?

Its due to go in in Feb, what should I be asking the guy to do?

[GTVLAD79]

Not much of that means a lot to me (I know computers, not card =P)

Looking over service history since I bought it (year ago) Ive had the air filters replaced bout 4 months ago and some oil filters/flush done?

Its due to go in in Feb, what should I be asking the guy to do?

Depends a lot on how many klms the car has travelled etc.

[IainH]

Current odo is like...140k?

My driving is usually to and from work which is about 2km each way with like 3 sets of traffic lights?

[Disciple]

Current odo is like...140k?

My driving is usually to and from work which is about 2km each way with like 3 sets of traffic lights?

Well that's why. 2km round trip. The engine doesn't even get a chance to warm up and the fuel mixture is probably rich as hell for the whole drive.

[TimmyC]

Well that's why. 2km round trip. The engine doesn't even get a chance to warm up and the fuel mixture is probably rich as hell for the whole drive.

Exactly, not as bad on mine. But if i drive predominantly suburbs, or lots of traffic lights then the fuel consumption will be crap.

Currently getting about 700km to a tank at the moment, with about 75% hwy ks.