Jaeyon's Questions...

[ColinT]

hi guys, ive just filled up my 2nd tank of gas with vortex premium. deciding to save money on fuel ive been driving my auto ba very carefully, keeping it shifting below 2k rpms so turbo doesnt kick in. I then remembered reading in the manual that it said the most fuel efficient speeds are between 60-100km/hr. just wanted to know how you guys have been driving, and whether the manuals right or wrong.

I found the most economic speed to be 81km/hr. Just when the overdrive kicks in. Boring but I had time to spare on a trip one day.

Travel with the cruise on the highway saves on fuel and speeding fines. Having the auto change under 2000 rpm could help but remember when yuor at 100klm/hr your at 2000 rpm anyway, unlike the NA version at 1750 rpm.

My worst 12.9/100, and the best over 520km was 9.85/100 on cruise.

I tend to agree with others that you don't buy a T and then look to save money on fuel, otherwise you would have bought the NA version.

[TurboDewd]

the best way to save fuel is to drive at a lower speed.

As you increase speed the energy required increases exponentially because you are applying a greater force to the air you are displacing AND more of it since you are travelling a greater distance per second.

This is why top fuellers require ridiculous amounts of power to extract .01 second improvements on quarter mile times.

so if youre doing highway driving and wana save fuel and time isnt an issue then do 105 rather than 115.

[Dagabond]

17 dont have a job and own a T......

I think your gunna be better off taking my option....

[harvyk]

The way I drive it is give it heaps and get it upto speed quickly... As funny as it seams I get better fuel eccon than driving softly because the car will continue to use fuel to get upto speed over a larger time span... (And most people will put their foot to far down on the go side anyway, so the "fuel eccon" value also goes very quickly)

I have also found that unless you go on a long trip using normal unleaded gets me further on a tank than 95 or 98... (But you lose out on some preformance...) It's esspecially good as normal unleaded is cheaper... (Just don't expect your car to last as long) (PS I'm personally now run 98 rather than unleaded)

[blackwrx]

on the trip back to Kal from Perth the other day I started off with an average of 12.6L/ 100kms and ended up using 11.9L/ 100kms. I thought that was pretty good sitting on 115 with cruise control on in 5th.

[Shockwave-T]

hi guys, ive just filled up my 2nd tank of gas with vortex premium. deciding to save money on fuel ive been driving my auto ba very carefully, keeping it shifting below 2k rpms so turbo doesnt kick in. I then remembered reading in the manual that it said the most fuel efficient speeds are between 60-100km/hr. just wanted to know how you guys have been driving, and whether the manuals right or wrong.

<{POST_SNAPBACK}>

Remove spare tyre, rear seat, front passenger seat, carpet, door trim, stereo. Don't use air-con (actually, remove that too). wind your windows up and if you have one, keep the sunroof closed. Pump your tyres up to 50psi.

Use 1/8 throttle and make sure the car stays off boost.

[XR68UZ]

lol these replies get weirder and weirder. weird question I guess?

[bugster70]

lol these replies get weirder and weirder. weird question I guess?

Yeah, welcome to the madhouse mate. :titwave:

Seriously though, I think it's a reasonably valid question. A lot of the time I'm looking for good fuel economy too, just makes sense. But of course there are plenty of times when it's just plain fun to access some of that power and then fuel economy cares fly out the window!

I think it just boils down to common sense. Light throttle applications, no hard acceleration (or braking for that matter, unless you have to - remember that the T is a heavy car and carries a lot of momentum and you can lift off the throttle earlier and 'coast' more, especially in an auto), etc, etc.

[ms700]

hi guys, ive just filled up my 2nd tank of gas with vortex premium. deciding to save money on fuel ive been driving my auto ba very carefully, keeping it shifting below 2k rpms so turbo doesnt kick in. I then remembered reading in the manual that it said the most fuel efficient speeds are between 60-100km/hr. just wanted to know how you guys have been driving, and whether the manuals right or wrong.

<{POST_SNAPBACK}>

Remove spare tyre, rear seat, front passenger seat, carpet, door trim, stereo. Don't use air-con (actually, remove that too). wind your windows up and if you have one, keep the sunroof closed. Pump your tyres up to 50psi.

Use 1/8 throttle and make sure the car stays off boost.

<{POST_SNAPBACK}>

And to add:

Remove rear spoiler, remove exterior mirrors, fill in handles, wax car regulary.

You could even go to extremes, if you have removed your spare wheel, you could cut your boot floor out, and probably the majority of the rear passenger metal also.

Dont take Dags' idea, that's too boring. Our suggestion is much better! :titwave:

[Paradoxx]

Yes as funny as it may seem, getting up to speed quickly then cruising saves me fuel. I have tested the theory several times, running a full tank out while babying all the way, then another tank flooring it all the way... I dont see any difference in economy. I only see difference when I use ultimate instead of shell premo. If I use ultimate I'll only get 450 or less to a tank. If I use shell I get well over 500km to a tank.