Don-T
Active Member
- Joined
- Feb 4, 2019
- Messages
- 219
- Reaction score
- 204
The last 6.4 I had was a ‘18 so it had the 6 speed trans. I pull a 35’ 5th wheel camper. My overall mileage average pulling was about 6.5 MPG. I pulled at 60 MPH. The truck would slow to 45 MPH at best going up 6% grades, and the coolant would rise to 230*. Unloaded the truck averaged 13 MPG. I drive no more that 5 MPH above the speed limit. I am retired and am in no hurry any more, I get there when I get there. I am happy to be rid of that truck.