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Why do I get such shitty gas mileage?!?!?

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Old 02-21-2008, 05:17 PM
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I have heard of seafoam but what is it and how does it help.
Old 02-21-2008, 05:53 PM
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Originally Posted by StuntmanMike
These gas gauges are definitely pessimistic.... I filled up the other night with the low fuel light on, I had to squeeze 13.5 gallons into. It's a 16.8 gallon tank, if I'm not mistaken.

I had gone about 310 miles, which worked out to just over 23mpg.

I can't complain about that, I just wish I could get more range out of it. If I could get 330 miles out of it I'd be happy. I usually don't drive till the light comes on, I like to fill it before that.

A4, 2,73's, BTW.
I just wish I could get the milage your getting. My best so far is 14MPG and thats 90% highway, and babying the chit out of it just to see what I could get as a best. My normal tank lasts 180-200 miles
Old 03-17-2008, 10:10 AM
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i put 10 gallons on it and only get to 120 miles, and i drive 50 city 50 highway, and just had a tune up, i wish i got the miles you are getting!
Old 03-17-2008, 10:18 AM
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seafoam removes deposits. I like it, but I had my heads off and soaked valves in it and it did nothing to remove the carbon... supposedly it works if you put it in your gas tank and run it through... i wasnt impressed B12 works better for me
Old 03-17-2008, 10:38 AM
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Try a new fuel filter its like 10 bucks and you'll be surprised how much better it runs.
Old 03-17-2008, 11:06 PM
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um.. I wonder how good my mpg will be? I havent drove my car but just a couple times around the town- and the day i picked it up.. It has a .578 lift cam, exhaust work, 12bolt w/ 4.10 gears. 6-speed. Procharged twin intercooled? will the thing get 10mpg around town just driving slow at least?? And i wonder out on the road? Anyone have a procharged D1SC or something like it to see what kinda Mpg they get??
Old 03-17-2008, 11:27 PM
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last time i check i was getting about 220-250 to the tank.i get on it everytime i drive it..but i drive 100 miles round trip to work so i have to stay awake some how..lol
Old 03-17-2008, 11:31 PM
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my a4 with a lid and open headerish exhaust gets 15-18mpg city dk about highway
Old 03-18-2008, 12:00 AM
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dude thats how my car is it drains fast but the last quarter of the tank meter lasts like 2 times longer thatn wen its the full side and goe might just be the gas sensor..wait tilll you use up ur gas
Old 03-23-2008, 09:38 PM
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I used to drive 140 miles round trip to work with about 85% of that being highway miles and would get about 320mpt (~23mpg)
Now my drive is 24 miles round trip, 100% city, and average about 230mpt (16.5mpg)
Mods: Lid, catback w/ cutout, ported TB, 160* stat
Old 03-24-2008, 09:26 AM
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My gas milage is trash.... my car has new plugs, fuel filter, yada yada and I get maybe 220 miles per 13-14 gallons of gas. But if I drive below Delaware and fill up I get insane good milage, for some reason the gas further down south is better? Anytime I go to OC, Maryland I'll get like 270-280 a tank of gas.
Old 03-24-2008, 06:08 PM
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For me, I found that changing the front o2 sensors gave me about 45 more miles to a tank. I was getting about 230mi. to a tank. After the new o2 sensors I was getting around 275mi. a tank. Keep in mind I have the 98 gas tank which is smaller than the others also. All this was before I got gears which has dropped my mileage per tank down a little. I get about 260 now. Seafoam + tune up + cleaning MAF + air filter + inflating tires to proper specs all helps bring gas mileage up

Last edited by miamifan3413; 03-24-2008 at 06:16 PM.
Old 03-24-2008, 06:13 PM
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Originally Posted by chemicalstylez
My gas milage is trash.... my car has new plugs, fuel filter, yada yada and I get maybe 220 miles per 13-14 gallons of gas. But if I drive below Delaware and fill up I get insane good milage, for some reason the gas further down south is better? Anytime I go to OC, Maryland I'll get like 270-280 a tank of gas.
Well I think altitude & temp & kind of gas (all gas has 10% ethanol now) may all play a big part of the things your seeing. Looks that way to me anyhow
Old 04-02-2008, 06:22 PM
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Mine is getting crappy mileage now too. Might be because I can't seem to keep my right foot out of it.



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