Question about 1999 Oldsmobile Regency

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I just tune up my car and know i am getting bad gas miles

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  • Roberta Smith
    Roberta Smith May 11, 2010

    what did you do or have done for the tune-up ?

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  • 28 Answers

The only way you can determine your gas mileage is by filling the tank then driving it down, filling it up again and dividing miles driven by gallons burned. You can't determine gas mileage by how fast the gage goes down. You may have made a mistake in your tune-up and got a couple of wires crossed. Someone may be staeling your gas.

Posted on Oct 06, 2009

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