I have a 2016 F250 with a 6.7 diesel, 6 speed automatic. Has anyone tried putting a chip in one of these trucks to get better MPG and do you think it would harm the truck? Thanks, Happy Camping
Diesels use "programmers" and yes all newer diesels for the last 10+ years leave a footprint when flashed that the dealer can see and will void your powertrain warranty. No way around it. The Duramileage thing is pure snake oil...