I took the SHO on a road trip this weekend and the MPG's impressed me. From OKC to Little Rock I got 27.2 mpg and Little Rock to Memphis I got 27.6 mpg. I was going between 70 - 75 most of the way. I probably could have gone all the way from OKC to Memphis on 1 tank of gas. I'm very happy with the gas mileage and love getting 5 MPG more than my old Marauder!