If you’re considering a Chevy or GMC heavy-duty truck with a Duramax diesel, you’ve probably heard impressive claims about ...

He mistakenly put DEF in his GMC Sierra Duramax and faced a $15,000 dealer bill. See how one local shop saved him a fortune ...

GMC Canyon introduces three new paint colors that replace three outgoing ones. Here’s a closer look at the new Glacier ...

If you have a 6.6 Duramax or shopping for one, you know that the fuel economy isn't the best. However, here are three ...