Hey STI Owners (PLEASE REPLY)

I have noticed that my STI is swallowing the Fuel as Hell

I am using 93 Octane fuel.

For example

I put $10.00 of Fuel on my STI . (its arount 43 cents per liter @ the gas station)

I use it to go to work, (3 to 4 miles from home) On the afternoon I return to home (3 to 4 miles, during the night may be I travel 7 miles or so to hang out.

Next day on afternoon probably i will have to put up another $10 of fuel.

Usage of the fuel pedal? May be full throtle in just 1 or 2 gears like 2 or 3 times at morning and 2 or 3 more at afternoon.


your fuel consupmtion is a lot too?

 

Yeah I noticed that too, but I think it's due to driving habits more than anything else. If you drive normally you'll notice the car get decent economy. It's just having a tendency to drive fast that burns gas.

I think I get about 150 miles on half a tank.

 

shift earlier for better gas milage and put the car in neutral waaay before the red light..

 

I'm getting _wayyyy_ better fuel economy than that.

I haven't tracked it week to month but I'm getting about 20 mpg, and I'm not going easy on the go pedal.

Check your tire pressure to be sure its not overly low.

- Janq

 

nobody said that they were cheap to run!!!

I used to worry about things like this. to begin with I just tried to get the best milage out of a full tank with and without air-con running by driving about like my granny on a sunday (ie. changing early and not going over a certain rmp). once I knew the best figures my testing was over. now I just floor it when I feel like it and feel the power..

just have fun and drive ..forget about fuel

 

Oh, wait I forgot to mention I never use my A/C except briefly for defrosting.

That maybe your cause.
The A/C sucks gas big time!

- Janq

 

That's a problem for me

I use A/C always. Here down @ Puerto Rico is almost 95'F everyday. Sometimes up to 103'

Lows 83F Highs 103F

 

Yeah in Hawaii I have to use the A/C too. I also have a blitz blow off valve.

 

Then thats the source of your fuel woes.
A/C sucks gas big time in most everything.

My wife's Honda Pilot (V6 240 HP) will get 23mpg (mixed) when I drive it. But I drive with the windows open when I get hot and very rarely run the A/C.

On the other hand when my wife drives it (its her daily driver) she get 15-17mpg as she's running around with BabyJanq in tow and the A/C is always on.

Funny thing is my '93 Legacy (my daily driver) doesn't seem to take a fuel hit when its A/C is running. It's always been a fuel miser even after 11 years of daily use.

In PR where the temps as you say are always relatively high I'd try driving with the A/C off but the fan set to high. The air flowing over you may cool you off. I do this all the time here in Wash., DC and it works great for me so my pits aren't schpitzing.

Another idea would be to tint your windows with a high quality UVA & UVB reflective tint. You'll pay a bit more than for a standard tint (just for looks) but it'll pay for itself in keeping you & your interior cool reducing your need for A/C.

- Janq

 

I dunno but recently I've been playing around with the dccd more and run it full open, and it seems that I am getting better fuel economy. It also might be that the car is almost broken it now, whereas a month ago when I was getting 13 mpg it only had a few hunded miles on it. I now get about 200 miles on 3/4 tank.

 

Getting about 21mpg with mixed driving

 

Yeah it's a performance automobile. Just be happy if you get more than 15mpg with it. It's sure better than my 02 4runner on fuel. And I don't get smoked on the freeway by vw beetles anymore...hehe.