Originally Posted by jgunner
2003/04 duramax thinking about getting a chevy/gmc 2500 ext. cab just wondering what fuel mileage to expect. no lift, just a stock 2500 THANKS FOR YOUR TIME
You cant beat that duramax!!!!
Its one bad motor!! GM under speaks it, they dont give it the credit it deserves.
My Father used to work at a GM engine research facility in Michigan and has seen the crazy stuff they put the duramax through while testing!!
Its bullet proof!