Increase MPG
I have a 2014 GMC Sierra 2500HD with the 6.0 gas burner. I have been looking at computer programmers and air intakes. Has anyone done any of these mods and did it increase your MPG any?
Forum Discussion
Here is a way to increase mileage and it is free! No warranty problems!
Drive slower.
We gain a full 20% in MPG between driving at 55 versus 62.
Drive slower.
We gain a full 20% in MPG between driving at 55 versus 62.
