Fuelly mileage of the big three diesels
It appears the new 10 speed in the Fords made a significant impact in catching up with the Cummins fuel mileage in the 2500's. Although it is still too little info in all of the new 2020 models to te...
Forum Discussion
Grit dog wrote:
^ Likely because the early tier IV issues bit them, just like everybody else. And about the time they were able to upgrade, the emissions systems had gotten markedly better.
Could have been...
