MPG 2017 3500s pulling 22,800

ACZL wrote:
The Ford also ran at 2100 RPM's while the Ram was at 2000 and GM at 1700, so I could see why the Ford used more fuel. Odd that the Ford was at a higher rpm than the other 2. Wonder what gearing was in each?

Ford and Dodge were 4:10. Chevy was 3:73.

Being at higher RPMs doesn't mean burning more fuel in a diesel. When you downshift, notice how you have to back off the throttle a little? Or if you have a pyro, when you downshift up a hill, the EGTs go down? It's because you need less fuel at higher RPMs. I wonder on this test if they downshifted the Chevy to 5th gear what the effect would have been.