10 mpg?!
01-12-2009, 10:46 PM
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10 mpg?! Well after I drove about 60 miles, I filled up about 6 gallons. How can I possibly only get 10 mpg? Only mods are cold air and a dumped exhaust. I'm running on royal purple synthetic oil, and my tires are inflated correctly. I can't think of anything else. Should I replace my 02s? I once had a code for one, but it cleared itself...
01-13-2009, 12:23 AM
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I started with a full tank and my trip set to 0. I drove 60 miles and then hit the same exact pump. I had about 60 miles on the trip at this point, and it took approximately 6 gallons to top back off.
01-13-2009, 12:39 AM
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And you let the pump stop the fill up each time, and didn't top it off manually? Because you can get 1/2 a gallon sometimes by topping it off yourself, and that would be 5mpg difference.
01-13-2009, 01:31 AM
#7
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You an automatic? I'm used to MPG in the low teens in my stock 3.23 A4 car.My last tank netted me 11.4mpg,but that's with nearly 100% stop and go,low speed,short distance in-town driving with a heavy foot,though.I'm also pretty sure I'm on original spark plugs and O2's and that gas stations in my area have ethanol blends which can reduce MPG.
I wouldn't worry unless that last 10mpg you got was highway miles with a M6.
I wouldn't worry unless that last 10mpg you got was highway miles with a M6.
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01-13-2009, 03:29 AM
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Well after I drove about 60 miles, I filled up about 6 gallons. How can I possibly only get 10 mpg? Only mods are cold air and a dumped exhaust. I'm running on royal purple synthetic oil, and my tires are inflated correctly. I can't think of anything else. Should I replace my 02s? I once had a code for one, but it cleared itself...
01-13-2009, 10:28 AM
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In my A4 when I had 3.23s, my MPG was around 15 for town (not stop and go) and highway, on occasion it was 17, but I attribute my crappier mileage to my tune not being as good as it could be.
01-13-2009, 10:37 AM
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bolt-ons 3200 stall 373's 21 all highway. 18 mixed. here. i was getting 10mpg when my car was stock. but come to find out i had some fouled plugs, and bad wires. Good Luck.
01-13-2009, 12:32 PM
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i'm running stock 3.23 gears and when its mostly highway miles i avg. around 25mpg at 75 mph. in kansas wind. around town its avg. 16-19. but not for long...
01-13-2009, 03:57 PM
#17
10 mpg seems a little lower then normal.
I have most bolts ons and 4.10s and still get 24.99 highway and 16.88 semi-city (i say semi city because my commute at the time was 20hwy 4city)
But you can see what a difference four miles of city driving makes.
I have most bolts ons and 4.10s and still get 24.99 highway and 16.88 semi-city (i say semi city because my commute at the time was 20hwy 4city)
But you can see what a difference four miles of city driving makes.
01-13-2009, 05:52 PM
#19
when i first got my car all highway through an M6 got me 28 mpg when it was stock. now if its combined with bolt ons and no tune i see around 15-16. my O2's are alittle bad tho i think. i had just replaced them before i did my headers and didnt change them back to burn them in 
