I see a wide range depending upon the driving circumstances. Around town, but not in actual traffic jams, mine gets about 13 - 13.8 most tank fulls. On the highway, ranging from 50 MPH to 70 MPH with only enough city driving to get out onto the open road, it'll get as much as 20.2 or so. The worst I've ever seen was about 11.6 for a tank full, but that was a combination of in-town driving and sitting idling a lot while picking up the kids after school.