Great information! I was actually considering a 5th Wheel with DW of 12k. Sounds like pulling a FW you got better mileage then the TT. I know with no trailer I get 13-14 in town and 17 hwy if I stay under or on 2000 Rpm at 70. I did get the truck for the 4:10 gearing specifically for the reason stated by dodge guy.Since its not a daily driver mileage is not a big concern but when towing I look more in to it for all the stops with a trailer is annoying..may even add another fuel cell. Thank You all for sharing, keep it up for I enjoy everyones feedback.