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  • 1 month later...

Hey people I've got a 93 GTST and I have always been sus about my fuel consumption. I drive to uni and work every day (city driving) and believe it or not I get about 550kms out of my tank sometimes even 600 if I drive granny styles, no bull !!I think it is because it has been dyno tuned, leaned out ???? I've got a cat back and a cheapo air pod, but otherwise stock (dynod at 160RKW). Any way, all my mates get 350-400kms ???? Even if I really trash it I get 400. I've never done a full tank of full highway driving but I am sure I'd get more than 600kms ? I've worked it out and I avarage about 10.8 to 10.5L/100kms. I think this is excellent, I love my car because I can actually afford to drive it!!!! LOL

Well my question is do you think this excellent fuel economy is because it has been tunned??? I bought the car with the work already done to it so I am not entirly sure what's been done???

And my other question is are Auto's worse on petrol than manuals, because I had one before my manual and I bearly got 350's !!! driving nicely !!

Cheers

my 180sx is pretty stock and i only get about 400km per tank thats pretty poor hey and like thats not even giving the car stick all the time.. but hey be reasonable you gotta give the car some poke once and a while.. but 400 km out of a tank is crapola right..

  • 3 weeks later...

Hey Fonz,

My mate has a 95 GTS-t manual with 3" exhaust,custom manifold and larger (slightly?) turbo & around 175 rwkw, and he consisentantly gets low to mid 10l/100km around town. His car shows evidence of having a FMI on it at some stage, but it was converted back to a stock intercooler before he purchased it.

On the other hand, my 94 GTS-t auto, with 3" exhaust from turbo back,FMI and cheap air pod with 154 rwkw, was getting high 13's to mid 14's l/100km around town. But on a long trip, my car would improve and get around high 9's to low 10l/100km, whereas my mates would stay constantly in the 10's on a trip. I put this down to myself being able to use my overdrive on the trip where I dont use it around town, and he is always in 4th or 5th gear most of the time regardless of where he is.

P.S. I said I WAS getting 13-14's because my car was always idling higher than most skylines at around 1000rpm minimum, but has now been fixed and hopefully the fuel consumption should change for the better now.

Well i have 400rwhp (well there abouts) Bigger fuel pump, fuel reg and 550cc injecs and so on. City driving i get up to 300km. Long distance Hwy i can get up to 450kmh. Driving up from sydney to brisbane i went through 2 1/2 tanks of fuel. I reckon there pretty good on fuel!!! Then again when the foot goes $20 (@ approx 95c per ltr) i get 150km to the tank.

I get between 400-500 per tank for my mostly city driving. That's a rough guess haha. Hey while we are on the topic of O2 Sensors, i noticed that mine doesn't have one after the cat. Cuz i just put on a hi-flow cat and had to blank off the hole that was meant for the O2 sensor. It's an R32 GTS-t.

Cheers,

Scott

I worked out mine last night when I filled up and I got 11.99L/100km, lets say 12. Thats probably 2/3 city driving and 1/3 highway driving and certainly plenty of boosting in there. I am happy with that, I usually get about 450km to a tank before I chicken out and fill up.

I think the old "crap at the bottom of the tank" is a myth. The fuel doesn't pick up from any lower just because the fuel level is lower. So in theory it should be sucking in whatever is at the bottom of the tank whether it's full or almost empty. Whenever you fill up it would mix it all up anyway.

I've had a look in the bottom of my tank when I was changing the fuel pump and it all seems pretty clean down there. On top of that, your fuel pump has a sock, and there is a finer fuel filter in the engine bay.

I've run my Commodore out of fuel once, and my Torana 2 or 3 times and I never suffered anything adverse because of it.

What I *have* heard of happening is some cheap fuel pumps require fuel flowing through them to keep them cool or they overheat and shit themselves (eg, most or all Kia cars). So running out of fuel on these cars could kill your fuel pump very quickly.

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