Bohemian: Great post. I didn't know "You get an allocation of 150 lbs. for the driver, anything above 150 lbs. is part of the payload." That was a surprise and the first time I have seen that information. So the next time I weigh my rig I will make sure to be in the truck the whole time and only have to allow 50 or so lbs (HA!) to be part of the payload numbers. While it's not a lot of weight it gets me a generator in the bed of the truck as part of the payload. I'm not that close right now to my TV limits with existing 5er however I am looking at a Sundance 2900RK with a hitch weight of 1715lbs (from the factory) so I'm already crunching numbers to make sure I have a 250lb buffer for payload.
On our first trip to Red River, NM the 2014 Ram 3500 DRW 4WD(Aisin transmission with 3.73 gears) had 1300 miles on the odometer. On the way to Red River, NM the RW425 pulled extremelywell with a full tank of water. The truck and trailer were weighed at a CATscale the weekend before the trip. The weights are listed below.
2015 Road Warrior 425 RT with a full water tank,fuel, and 2Klb UTV weighed: 18,840 lbs (included everything except clothes, food or drinks) Pin weight: 3,160 lbs 2014 Ram 3500 Mega Cab Laramie Longhorn DRW 4WD Aisin 3.73gears: 9,480 lbs GCWR of truck + trailer = 28,320 lbs
Tow Vehicle Steer Axle: 5,400 lbs
Tow Vehicle Drive Axle w/ trailer: 7,240 lbs
Tow Vehicle Drive Axle without trailer: 4,080 lbs
On the way to Red River, NM we broke the trip into two legs. The RV water tank was full. We stayed overnight in Amarillo and then drove into Red River the following day. On the way to Red River, NM we battled a15-20 mph headwind/crosswind. Average fuel economy: 55 mph: 9 mpg 60 mph: 8.5 mpg On the return trip we decided to drive straight through toOklahoma. TheR V water tank was empty on the way home. On the way back we battled 30 mph crosswinds. Average fuel economy: 55 mph: 9 mpg 65 mph: 7.5 mpg 70 mph: 6.5 mpg The truck and trailer handled beautifully. Please note that I had to lock thetransmission out in fifth gear as sixth gear would not maintain speed throughthe hills of western Oklahoma. The extra weight associated with the watertank did not affect the fuel mileage. The biggest factors influencing fuel mileage appear to be crosswinds/headwinds, terrain and the speed of the tow vehicle.