Is 21MPG Bad??????
08-08-2006, 04:00 PM
#1
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Is 21MPG Bad?????? Well, I drove 285 miles on 1 tank of gas. I put in 13.7 gallons, so it's close to 21. Now, was puzzles me is most is highway miles driving to work, with a little city. Never pushing it or WOT, babying the car basically. The window sticker says 30MPG highway and 19 city. Why am I only getting 21 if it's mostly highway? I just filled up and put a can of the STP gas/fuel injector/carburator cleaner in it. Any suggestions?
08-08-2006, 09:43 PM
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That is definetly not very good. Thats what i got with all highway driving (85-95) in my 400hp car. Have you checked your air filter, fuel filter, spark plugs and 02 sensors?
08-09-2006, 08:39 AM
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Change your MAF back to stock if you can and try it again. That could be it. I have an A4 and I get 21 mpg average with a mix of city and highway. I consider it pretty bad, because I used to get 24-25 mixed and around 29-30 highway before my header install. Also have an SLP 85mm MAF that i think is doing some of the damage to my gas mileage. Id be interested in seeing if it helps yours to go back to stock from the Granatelli.
08-09-2006, 08:58 AM
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51,000 miles. Only mods are in sig, nothing major that would need a lot more gas. Mostly high way driving, with a little city thrown in, but thats just from my house to the high way which is about 2 miles from my house. Like I said, I baby it, never WOT, just put some STP fuel injector cleaner/carburator cleaner in it, maybe thinking bout puttin a bottle of the STP Gas cleaner stuff in there, says it improves gas mileage. K & N air filter, maybe I need to clean that. No signifigant changes though that I would think would use more gas. The MAF is something I could look into changing, i still have the stock one around...
08-10-2006, 03:55 PM
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Now, driving to work everyday is on the highway, but I only live 15 miles from work, so I am on the highway for like 13 miles then shut it off. So, could it be that it's still considered city driving? I mean, if I took a trip for 50 miles, then maybe I would get the 28/29 miles on the highway? Cause I really am not driving long on the highway maybe to fully save gas. lemme know some opinions if this makes sense.
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08-10-2006, 08:20 PM
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mines a manual, stock MAF but modified by tuning and i get 27 w/3.73 gears and that also involved getting on it once or twice.
one time i will TRY keyword TRY to keep it down and see whats the max i can get
used to get about 31 on the highway
one time i will TRY keyword TRY to keep it down and see whats the max i can get
used to get about 31 on the highway
