Dpf delete, mileage increase ??? - chevy gmc, 2011+ lml duramax powertrain discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving .. Lly: poor fuel mileage - duramax diesels forum, I just bought a 2005 duramax and have only been getting 13 miles per gallon. i crawled under it and seen that it only had about a 7 feet piece of 3 inch pipe for the. Mpg 2013 duramax ? - irv2 forums, Hi. i have a 2009 lmm 2500 and get 10.5 mpg towing my 5er. i am looking to upgrade to a 2013 dually to better handle my 5er. should i expect any difference in towing.
2008 lmm duramax 4x4 mpg increase suggestions - duramax, 2008 lmm duramax 4x4 mpg increase suggestions lmm. Best way to increase fuel mileage - duramax forum, Hello all, i'm new to the forum, but not new to a chevy / duramax truck. this is the 2nd one i've owned and loved both. i never really had a reason to. How to increase fuel economy on a duramax diesel | ehow, It's no secret that a duramax diesel is not known for fuel economy. but there is more than one way to increase the fuel economy on a duramax diesel and.