Gas milage

Is killing me. I have a 99 LX with a display and it's saying 15.5 miles a gallon. This takes the fun right out of this big ole tank. ANYTHING be done??? Would really like to drive her more than I do. Just can't afford this beasts appetite. DAMITMAN !!!!!

Does the cars calculation match what you actually get?
Have you done a basic tune up?

We'll man. I did just get it and in the process of running out the full tank a record pace. Ha. Looks like the miles are adding up right. Will know shortly. Yeah. We gonna take her in for a tune up shortly but hey man. Thanks for the reply. The do come few and far between here.