I got 17-18 when i was stock, now that i have the larger tires (265/75r16) I get about 13 or so. Thats summer too, haven't really checked this winter. Driving style is the same. Mild amount of hot rodding, off-roading and letting it warm. Plus most of my miles are in town to and from work which is only 1.5 mile away. Hope the input helps!