TERRIBLE Gas mpg

**Speed_kills_WS6** · 02-14-2008, 06:14 PM

So I'm new to this forum, but have been reading up on material for weeks. I had a 98 TA A4, averaged about 19 mpg around town, 28 on the highway! Upgraded to a 02 WS6 M6, gas mpg about 15!!!! I don't drive like a bat out of hell all the time, so I can't figure out what my problem is. Correct me if I'm wrong, but shouldn't I be getting the same if not better mileage as an A4??

**bryceslu** · 02-14-2008, 06:28 PM

Your mpg may be thrown off without your knowing due to a different gear ratio. I also have an m6 and can get anywhere from 10 to 29 mpg. All depends on what rpms you shift at.

**0rion** · 02-14-2008, 08:53 PM

car seems to run fine though? Any soot in the exhaust tips? There will probably be some soot but does it look excessive? Any mods on the car?

**Demon_Z28** · 02-14-2008, 09:39 PM

could be running very rich causing you to use a lot of gas...might want to get your emmision equiptment checked out, PCV, EGR, Air and ect... or lack of airflow will cause a rich air/flow mixture resulting in bad gas mileage.