[split] Well, she bit the dust, In Frame this week...

[Texasdude74]

That truck is a 2016 600 Cummins with a milk money delete by a board member here and 26k miles on it.
Out of the truck yard in Kansas City heading west into a head wind it managed a respectable for a car hauler 3.7 mpg.
My 920k mile cat running 10 mph ahead of it got 5.8 mpg, the worst its' ever done.

This original post was under things that might help other people.
I thought I would contribute some real world data people might find interesting.
This is Rawze' sand box and he's entitled to his opinion that there is only one relevant engine and truck style for the entire transportation industry.