2020 1500 Duramax 100 Mile MPG Tow Test
Looks like some pretty good performance from the new 3.0 Duramax. I do like that the engineers used post DPF exhaust for the EGR input which prevents the EGR cooler and the intake from building up so...
Forum Discussion
ScottG wrote:
Imagine how good the mileage would have been if he hadn't been doing 70 the whole time.
I was thinking the same thing.
I also can't believe he was originally towing that trailer with a Colorado.
