Mileage mods

[DisplacedOkie]

What can be done to improve fuel mileage?I get about 13.4 mpg and was looking for some mods that might repay theirselves in fuel savings and still stay dependable.I average about 100 miles a day.

 

[JD4440]

I've already posted in your duplicate thread.

 

[Duramax2006]

Keep your foot out of ty lol. Just get a custom tune from one of the vendors and you should be good to go.