2014 Dodge 2500 4x4 "Big Horn" w/ 6.4 Hemi. Been through 1 tank of fuel, mostly around town with one 60 mile highway trip. Looks like 13 mpg in town and 17 mpg highway. I expect it will get better as it breaks in a bit. Haven't done any towing yet, but will be hauling hay in the next couple of weeks.