BUICK LESABRE ENGINE POOR MILEAGE

Currently Getting Only 14.5 Mpg In Town And I Am A Very Light On The Pedal Driver Sometimes I Notice Some Slight Hesitations And Just...

My Car Has Been Getting 30 Or 31 Mpg On The Road But The Last Two Trips I Have Only Gotten 24 Mpg. Do You Have Any Suggestions Why? There...