Honda lists 26/31 mpg, i haven't been able to get 26 on the highway let alone the city! I put a K&N filter on and that didn't seem to have an effect on economy. 75mph = ~4000RPM's, everyone says to drive at 3000RPM's which is ~60mph and economy will improve. Anyway, i expected better mileage out of a civic! Last tank was 220 miles. Any others?