Just upgraded from chevy 6.0 to a 2017 Ram 3500 SRW CTD. Already impressed with the 20 mpg on the highway. What should I expect towing a 9-10k pound 36 ft travel trailer in terms of mpg?
I've got a 2500 with 3.42 rear end and tow a 9500 lbs bumper pull. On flat land I can get around 12 (depending upon wind) towing at about 67-68 mph on the highway. Hilly terrain and I am closer to 10, same speeds.