2005 Buick LaCrosse Q&A

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

every time iput gas in it -
Answer 1
Do you have a check engine light or any other warning lights on? -
Answer 2
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? -