What can I do to improve the gas mileage on my 2009 Dodge 3500 Quad Cab Cummins?

General Discussion
21

Have heard good things about the propane setups-Kevin

22

check out www.smartytuner.com. I know a few guys getting good results with it. I have a 2014 Chevy 3500 and I get 20 on the highway, so 22 may be possible in yours. My wife drives a Honda CRV and it only gets 6mpg better then my 1 ton crew cab long bed 4x4 diesel.

23

check out www.smartytuner.com. I know a few guys getting good results with it. I get 20MPG with my 2014 3500 Duramax so your claim might not be to far off.

24

check out www.smartytuner.com. I know a few guys getting good results with it. I get 20MPG with my 2014 3500 Duramax so your claim might not be to far off.