I just installed Pedal Commander on my 18 O.B. 2.5L yesterday. Happy with it as it improved acceleration quite a bit running the thing set on City #2. Don't care about that much about mileage but wanted a little more umph with acceleration. Tried the higher settings but it increases shift points a little to high for me and the City #2 setting feels just about right for me. Had the same product on a RAM truck I got rid of last year and had no problems with that one so got one for my Subaru now. Works great, easy install.