What reasons would car be using way to much gas for 4cyl
on 2008 Pontiac G6

Don't know much at all about cars, hubby doesn't either, but car is using way to much gas, his full size Ford F150 gets better gas mileage than my 4 cylinder! I don't know anyone that can look at it for me and I don't have the money to take it to a shop right now but its driving me crazy not knowing what it is and if it could be something simple we could do that we just don't know.

Asked by for the 2008 Pontiac G6
Do you have a check engine light on? If so, get code read at an autozone for free and post results. Otherwise, change spark plugs and air filter and see if the MPG inproves. May just need a tune-up. Also, saw your other post which may be the answer to your problem.