I just replaced my 2001 7.3 powerstroke with a new 2016 6.7 powerstroke 4X4 I know the 6.7 won't get the mileage that my old truck got but once it's broke in what kind of mileage are you 6.7 owners ...
I just posted the question to see what others were getting with their trucks knowing that driving methods differ from one driver to another ,nothing more than a interest of information.
I'm not a mileage nut if I were I wouldn't have bought the truck, my Sunday driver 1967 SS Chevelle gets 8 MPG if I keep my foot out of it and that's tough to do what have the HO if your not going to let them run.