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2005 Buick LaCrosse Question: it burn a little more gas than usally why is that

 

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Visitor, 3.8L V6, Delray Beach, FL, September 06, 2010, 19:01

every time iput gas in it

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, September 06, 2010, 22:02
     Master

    Do you have a check engine light or any other warning lights on?

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  • Answer #2

    Visitor, December 20, 2010, 15:21

    Winter gas contains ethanol. Ethanol has a lower flash point and less energy per gallon. Gas mileage goes down approx. 10%. That MIGHT be what you are seeing. Does it go back up in the summer?

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