dd15

We rarely permit for more than 80K gross, so not a true heavy hauler. We are open deck so that hurts our mpg off the bat. The majority of our trucks leave the yard between 75K and 80K. We have DD13s rated at 450/1650 running 64mph. Ours are still getting broken in and my numbers are on winter fuel so I expect a significant increase with warmer weather, better fuel, and getting past the break-in period. We're averaging 6.4-6.9 between the trucks.

I don't want to hijack the thread but PM me your experience w/ the Paccar MX. I've been investigating them, I'd like some real world experience.