the D-max for sure--and still haven't hooked the trailer to it yet! Almost 19mpg on the 1st tank of fuel is awesome

Think it is time to order an aux oil filter 'cause this truck is a keeper!!!

great info here for sure!!

Wow! I have never heard of such good mileage. What are you doing to keep it that way. I figured the best out of a duramax would be around 17 mpg.