Got the new trailer. At 14k lbs its time to upgrade truck. Brought the camper home. Flat drive she did ok, e85 dic read 7mpg at 60mph. But once i hit the mountains mpg dropped as expected and she struggled. From a dead stop going up incline didn't think she was gonna make it, on level ground she did it ok. On 200 miles trip avg mpg was 5.5 on dic. Not sure if 4:33 or 4:56 would help. Gonna start shopping for a diesel. Other than that i was really impressed how she handled it. Airbags helped no squat. Truck is a 15 hc with a tune, cai airbags with andersen ultimate hitch.