I probably get somewhere in the neighborhood of mid-20's city and 29-30 mpg on highway in my 95 Accord EX 4 cyl.

If you have an intake, make sure to clean the filter regularly dependent upon your driving conditions. I have an AEM CAI on mine; and I cleaned it this weekend. It was clogged and way too dirty. I'm sure my gas mileage probably just improved doing that!