deltabravo wrote:
I agree with the OP.
I ran the same route over 100 times doing RV transport between Spokane to Pendleton and back with my 06 LBZ. I played with my speed a lot. Slowing down helped my profit margin. I could easily get 22.5 mpg running empty at about 60 mph.
The OP is arguing nothing can help the mileage of a diesel because of the way they work. Which totally isn't true. As I've mentioned, gearing and a 10 speed transmission can effect and improve mileage. Same thing is the could get cylinder deactivation to work on a diesel.
The manufacturers can improve fuel mileage if they wanted to invest in it.
BTW, I am at 19.5 mpg on this tank of diesel, a few days commuting to work and a trip last night from Spokane to Pullman for the football game.
