handirifle
Veteran Member
My BIL just got a new to him, 2012 2500 with the 6.0, against my suggestions, and his best mileage on the freeway has been 15-16. Pulling his 10K (GVW) was probably pulling about 9200, 5th wheel he gets about 7. I got 12.4 pulling my (scaled just before hitting the road) 11,400 5ver.
Not trying but it was easy to lose him in the hills. I just kept mine running between 1700 to 2200 RPM, and it just kept pulling. Robs tune helped a lot in that dept too, with the turbo brake.
While it might not be the best truck, in some terms, it is definitely the most fun and powerful, all the wile getting the best mileage, of any truck I have ever owned. That includes my 1975 Datson 2.0L 4 cyl, 4 spd.
Not trying but it was easy to lose him in the hills. I just kept mine running between 1700 to 2200 RPM, and it just kept pulling. Robs tune helped a lot in that dept too, with the turbo brake.
While it might not be the best truck, in some terms, it is definitely the most fun and powerful, all the wile getting the best mileage, of any truck I have ever owned. That includes my 1975 Datson 2.0L 4 cyl, 4 spd.