“My one ton diesel, with sled deck and drawers loaded with tools (10,000 lbs) with no trailer or other load will do 33mpg. “
——The Winner Is: Chevy Silverado 1500 2WD!——
Chevrolet Silverado 1500 Diesel
The new Chevy Silverado offers the best fuel economy for a diesel truck. It gets 33 MPG highway, 22 MPG city, and 27 MPG combined.
https://prosourcediesel.com/blog/diesel-trucks/which-diesel-truck-gets-the-best-mpg/
The half ton is 42mpg (my testing, hilly hwy, cruise at 125km/hr.) with box cover over 50. Delete it and that’s automatically 30-50% better. I didn’t test delete yet.