Towing a Keystone Everest 322R (35ft) 5th Wheel that has a GVW of 12,500. Have not weighed since I bought this truck, but I'm guessing from the last time I weighed the trailer that I'm still around 11,500.

Total length of trip from Everett WA to Long Beach WA was 435 miles round trip (with some around long beach driving) and my AVG MPG per the lie o meter was 11.9. I didnt check manually but from comments its not far off. Considering my old 1999 Dodge 2500 with the 5.9L Diesel got about 9MPG I'm happy with that change. My total milage is now 3000. So I hope with age that will improve

The HP change is unbelievable. If I was lucky on heavy hills I could pull 35 with the Dodge. I had no problem holding 60 and could accelerate up hills at will. In fact going up one long stretch a slower truck pulled over to the side and I hit the accelerator and was doing 65 from his slow of 35 in no time and popped around him.

I'm a Happy Happy Camper.

 

Glad to hear reports like this! The horsepower is amazing with this truck.