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?
2006 Chevrolet Silverado 2500HD 4x4 6.0 gas with 1998 Lance SquireLite 165. Three runs on the Alaska Highway and two runs to the East coast. The way we geared the truck we get 10.0 with or without the camper. Plenty of power so we can pass some going uphill....love it!