2007.5 3500 Low Fuel Mileage?
I have a 2010 6.7 and I am only averaging 13 MPG everywhere. Has anyone done anything to improve a 2010 and up filter, exhaust, tune wise? It is still bone stock. Its my first diesel and wanting to keep it for a long time.
Thread
Thread Starter
Forum
Replies
Last Post
RatsMC
Chevy/GMC 6.2L and 6.5L
19
May 4, 2015 05:25 PM




hope mines closer then what im thinkin
Hopefully it all turns out good!
