Pretty much the same here. Off-road, on-road, back roads, in town, on the highway. The only time I typically get lower gas mileage is on the highway at higher speeds. My 35s on stock gears like running 90mph in 6th gear. Seems happiest there, despite the protest from the falling gas needle.15mpg City Driving
I seem to get 15mpg no matter where I go or how I drive.