Just rolled over 8500 miles since March. I have a 40 mile commute and have been keeping track since we brought it home.My drive takes me up and down several grades and runs from 4000 to 6000Ft. I haven't noticed much difference from break in to this point, depends mostly on how I drive. If I flog the life out of it when I'm late at 80mph I get 15, if I'm not flogging it I get 17 to 18 at 60 to 65 mph. On a long trip on the interstate the best I've squeeked out has been 19. The faster you go, the worse it gets. When I tow our 13ft. Burro trailer loaded with stuff in a headwind I've seen 13mpg. I can live with all these numbers.