Updated Fuel Mileage Record-9.1 mpg

[Hammerhead]

(05-11-2018 )lonestar16 Wrote:  i have a 13 speed would it do any harm running it in 12 to keep my rmp up more or should i keep it in 13 rolling down the road..just a new trying to learn howto make the most money i can

The answer to this question is "It depends"
There are so many factors, tire size, gear ratio, GVW, weather, terrain...
The best answer is to ask yourself, "can you maintain your desired road speed at 15psi or less boost?"
If yes, you're probably in the right gear.
If no, then you're probably not.
Listen to your truck, it will tell you if it's happy or not. They don't talk, they sing and tell stories, you just have to listen...