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Old 08-21-2011, 12:15 PM   #1
mattw278
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Default 2011 WRX mileage compared to my old 2006 WRX

Recently I bought a new 2011 WRX and traded in my 2006 on it. One thing i noticed thats interesting is my new one does not get as good mileage as my old one. my old stage 2 wrx would easily go 330+ miles without the gas light coming on. my new one goes about 315 and the light comes on, plus the new wrx holds and additional gallon. My cobb accessport told me that my old car could get up to 30 mpg on the highway, my new wrx gets 23-25. I just thought that was interesting. Maybe the downpipe, tune, and intake were what unlocked my old cars mileage potential?
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Old 08-21-2011, 12:21 PM   #2
MattD87
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Let it break in.
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Old 08-21-2011, 12:26 PM   #3
Seventh
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Indeed, let it break in. I've gone as high as 360 miles on a tank in my stage 2 '11.
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Old 08-21-2011, 12:29 PM   #4
Bruins1982
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My car's MPG display shows 29.4. (Not sure how accurate it is.) That's with it running for about 4,000 miles and the car has almost 9,000 total. I drive like an old lady though. I usually shift around 3,200 RPMs.
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Old 08-21-2011, 02:00 PM   #5
mattw278
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Ohhh yes, i have noticed the mileage getting better and better actually.
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Old 08-21-2011, 03:09 PM   #6
furiouswrx
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I get about 29-30 mpg on the highway at 65mph. 26.2 mpg average lifetime mileage, at 3800 mi now
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Old 08-21-2011, 03:45 PM   #7
Akrexak
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New car is still learning. It will learn.
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Old 08-21-2011, 04:35 PM   #8
SWP n Gold
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I filled up the other day after driving 343 miles and it only pumped 13.8 gallons (tank capacity is 16.9) so 400+ miles to a tank is definitely doable on these cars. Did you change your driving habits at all?
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Old 08-21-2011, 04:58 PM   #9
Bradrcr
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You guys are amazing, no idea how you get that mileage. My wife was getting 22 mpg driving locally (Seattle) on the 2011 WRX, we managed to get 26 mpg on a road trip last month, and since flashing to Cobb 91 Stage 1 a couple weeks back she's now getting about 18. Getting a Torqued Performance map in a couple weeks and hoping that will help, but the consistently over 25mpg guys stun.
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Old 08-21-2011, 05:09 PM   #10
erik11876
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Quote:
Originally Posted by Bradrcr
You guys are amazing, no idea how you get that mileage. My wife was getting 22 mpg driving locally (Seattle) on the 2011 WRX, we managed to get 26 mpg on a road trip last month, and since flashing to Cobb 91 Stage 1 a couple weeks back she's now getting about 18. Getting a Torqued Performance map in a couple weeks and hoping that will help, but the consistently over 25mpg guys stun.
What octane gas do you guys have in Seattle? You guys also have the worst traffic ever so I've heard, that can hurt the mileage. I get about 25 per gallon with 93 octane, no mods except an SPT cbe.
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Old 08-21-2011, 05:35 PM   #11
AZ11hatch
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Wow! My best, "before the fuel light comes on mileage" is 298 or so in my STI. Normally around 260ish. Lifetime avg. is 20.4. I pretty much never use S# mode.
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Old 08-21-2011, 09:16 PM   #12
Bradrcr
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Quote:
Originally Posted by erik11876

What octane gas do you guys have in Seattle? You guys also have the worst traffic ever so I've heard, that can hurt the mileage. I get about 25 per gallon with 93 octane, no mods except an SPT cbe.
92 octane, traffic is average. After driving in California, I know the gas up here isn't too bad either. It's the Stage 1 flashing that really F'd it up, hoping Torqued can do better.
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Old 08-21-2011, 10:21 PM   #13
11WRXinRed
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I have gotten 25.2mpgs for my 5100 miles so far. I drive pretty conservatively and don't go over 4k very often unless I feel the urge for boost.
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Old 08-22-2011, 12:06 AM   #14
paliknight
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i get around 250 miles in 13 gallons average. but its mostly city driving and my car only has 1k miles.
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Old 08-22-2011, 12:33 AM   #15
wrx~god
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Strange. My 04 wrx couldn't do better than 24 driving like a granny. My 11 STI gets 26. Let her break in.
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Old 08-22-2011, 01:09 AM   #16
dragonwrx1
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my 2006 wrx is at Cobb AP stage 2 (OTS MAP) and i average about 24-25mpg with some traffic areas on the highway.
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Old 08-22-2011, 02:03 AM   #17
pushatam
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I get about 25 mpg highway/street mix. When street alone, 21 mpg. For my los angeles to mammoth trip, 28mpg
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Old 08-22-2011, 04:42 AM   #18
RandR
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22.2 mpg after 12,000 miles or around 10.6 l/100km on mixed roads

WRX CS10 ~ 200 kW at the wheels (272 awhp - 340 hp at the fly-wheel), 425 Nm torque (314 ft lbs @ 3000 rpm)

average long term range ~ 600 km or 370 miles on a full tank

Last edited by RandR; 08-22-2011 at 04:54 AM. Reason: typo
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Old 08-22-2011, 08:59 AM   #19
bluemax189
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was only getting 22-24 myself on highway, just did an oil change last week and had them check tire pressure and fill, now im 27 same driving habits.
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Old 08-22-2011, 10:16 AM   #20
larkdemon
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Quote:
Originally Posted by Bradrcr View Post
You guys are amazing, no idea how you get that mileage. My wife was getting 22 mpg driving locally (Seattle) on the 2011 WRX, we managed to get 26 mpg on a road trip last month, and since flashing to Cobb 91 Stage 1 a couple weeks back she's now getting about 18. Getting a Torqued Performance map in a couple weeks and hoping that will help, but the consistently over 25mpg guys stun.
It's a matter of keeping yourself restrained at 65, and following speed limits.

Crazy I know.

But on another note, maybe pick up double clutching and heel toe-ing?

I thought revving here and there would be wasting gas, but actually it's been very helpful slowing down at stops that are going to turn green soon and taking turns without losing engine momentum, etc.

(Although never coast in Neutral on prolonged downhill sections.)

Also, pay attention to inclines, accelerating on the downhills and just be very aware of what's going on a couple hundred yards ahead of you just so you're not wasting gas.

Best I ever did was last week, From Victorville, CA to Zion National Park, UT
Got there on one tank, on a 345 mile trip.

Averaged 30 MPG on California 91.

Usually I get low 20's city and high 20's on Shorter Highway trips.
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Old 08-22-2011, 12:03 PM   #21
b1aze
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Quote:
Originally Posted by AZ11hatch View Post
Lifetime avg. is 20.4. I pretty much never use S# mode.
Pretty much this for me. 4700 on the ODO.
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Old 08-22-2011, 01:17 PM   #22
mattw278
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Quote:
Originally Posted by b1aze View Post
Pretty much this for me. 4700 on the ODO.

I see you both drive STis.. Maybe that's a contributing factor?
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Old 08-22-2011, 01:53 PM   #23
Leftlane2
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I replaced my 2003 WRX with a 2010. It took 8000 miles for the 2010 to equal the fuel mileage of the 2003 but now at 9000 miles the 2010 is a little better.
Last tankful was 27.2 MPG and 403 miles.
Part of the improvement is due to break-in, part is me learning the new car which has a lot more torque at lower RPMs than the 2003.
STI's would get less MPGs than WRXs - at least in stock form. The EPA mileage on the Moroney's indicate that. STI's have more weight and drag. It's the price of performance.
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Old 08-23-2011, 11:31 AM   #24
greene_giant
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Quote:
Originally Posted by larkdemon View Post
(Although never coast in Neutral on prolonged downhill sections.)
Why? Sorry if this is a dumb question.
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Old 08-24-2011, 05:45 PM   #25
Cube3601
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I was wondering about this, too. My WRX gets about 23mpg mixed average but it's only got about 4900 on the odo. Lifetime's 21.3 so far. Apparently I just have to drive it s'more.

Since we're throwing this out there, my best trip thus far before the fuel light is 300 miles. I have noticed that at about 60 mph you can get upwards of 30mpg out of it, but the speed limit's 70 on the interstate around here and I tend to take advantage of it...
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