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TERRIBLE Gas mpg

This is a discussion on TERRIBLE Gas mpg within the General Help forums, part of the LSx Technical Help Section category; So I'm new to this forum, but have been reading up on material for weeks. I had a 98 TA ...

  1. #1
    Member Speed_kills_WS6's Avatar
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    2002 TA WS6 M6

    Exclamation TERRIBLE Gas mpg

    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??

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    Member bryceslu's Avatar
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    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.

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    Veteran 0rion's Avatar
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    06 duramax

    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?

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    The Demon Demon_Z28's Avatar
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    2001 Camaro SS

    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.

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