I've done a search and came up empty. I've got a 2001 Dodge Ram 3500 supercab dually w/ a Cummins and 4X4. Now when this truck was new it got 19 mpg. Now I'm only getting 11.6 mpg. I've just put in a new k&n filter and a new fuel filter, with no change. I've also ran just about every kind of desiel injector cleaner through it that I could find. I don't know what else it could be. Any input is appreciated.

 

This is my standard response for people asking diesel questions...

Check out one of these two sites. MUCH more information and help for diesel owners than you will find here.

www.dieseltruckresource.com

www.turbodieselregister.com