horrible gas mileage in a 08-09 WRX - Subaru WRX Forum
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#1 Old 06-30-2009, 04:03 PM
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horrible gas mileage in a 08-09 WRX

I got a message today from another member asking me how my gas mileage was...We are both in the same boat and getting horrible gas mileage. I get just under 300 miles on a full tank. I dont drive my car crazy, i get on it every so often(thats why i bought the car), but for the most part I baby her. I dont really shift after 3500 rpm. I always fill my tank with 93 unleaded, so there is never crap gas in my tank. Is there a break in point where the motor it totally broken in or am i just destined to break my wallet at the pump? !Cry!
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#2 Old 06-30-2009, 04:08 PM
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Are you new to driving stick? I can get 400+ on a tank no problem.
I am in an 09 as well. It all depends on driving habits.
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#3 Old 06-30-2009, 04:15 PM
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i've driven stick since i've started driving..... maybe i'm just not smooth...but i dont think that would explain losing 100 miles.
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#4 Old 06-30-2009, 05:04 PM
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I noticed a big change in mileage if you shift early. Keep the RPM down and the gas mileage will improve. It's not much fun, though.

There's less boost at low rpm, thus the engine thinks it's smaller and more efficient.
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#5 Old 06-30-2009, 06:20 PM
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I am averaging just around 20mpgs in mixed city and highway mileage for the first 1200 miles. Its well below 20mpg in strictly city driving.

Have you switch it to I drive versus Sport or Sport #?
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#6 Old 06-30-2009, 06:25 PM
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What's your average mpg?

While I'm driving around in the city I average 20.5 but pure highway I get 26.5 mpg.

But I'm pretty sure the fuel light comes on, when there is still 3-3.5 gallons left in the tank.
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#7 Old 06-30-2009, 06:28 PM
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How often are you getting into the throttle? If you drive it hard your gas mileage will suck.

I get 280 miles on a tank of gas and at least one other STi owner I know gets about the same. Your mileage sounds normal to me.

My name is Ken and I am a HP Junkie.
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#8 Old 06-30-2009, 06:50 PM
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I'm averaging about 21-22mpg. i dont get into the throttle too often. I really dont know what the deal is but i thank everyone for their help
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#9 Old 06-30-2009, 09:08 PM
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Sounds about average for a stock car. I get slightly better with my stage 2 when I keep my foot out of it. But there has been occasion where I have only gotten 9 miles to the gallon with mine.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
Stage 2 2005 WRX
Cobbtuning.com"
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#10 Old 06-30-2009, 10:12 PM
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well i mean what kind of millage were you expecting?
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#11 Old 06-30-2009, 11:23 PM
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How many of it are city miles and highway miles? I get crap mileage because I have a tendency to get into boost often.

rollin on 17's now and they're dirty
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#12 Old 07-01-2009, 02:23 AM
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Quote:
Originally Posted by booosted09 View Post
I'm averaging about 21-22mpg. i dont get into the throttle too often. I really dont know what the deal is but i thank everyone for their help
That is normal. You aren't getting horrible mileage.

My name is Ken and I am a HP Junkie.
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#13 Old 07-01-2009, 07:21 AM
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i'm living in south africa, i get 10km/l if i drive nice and 8km/l if i use a bit of boost. that translates to about 23mpg
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#14 Old 07-01-2009, 08:17 AM
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I just filled up at 11mpg... Course I have 810cc injectors and a lead foot.

It's all in how you drive m8!

04 STi 16G powered lagless fun
04 WRX: SOLD
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#15 Old 07-01-2009, 10:56 AM
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Quote:
Originally Posted by newtothegame View Post
Sounds about average for a stock car. I get slightly better with my stage 2 when I keep my foot out of it. But there has been occasion where I have only gotten 9 miles to the gallon with mine.

Holy shit 9 miles to the gallon?
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