I know these things aren't exactly fuel efficient or bought for that purpose but what sort of mileage are you guys getting with the camper on and is your rig gas or diesel?
11-13, but who cares? You gonna sell your truck and camper because you get 11 instead of 13? I'll drive near 80 empty. Plenty of 75mph speed limits in Texas. With the camper, I keep it under 70, most of the time.