Add Yahoo as a preferred source to see more of our stories on Google. For decades now, the big three American automakers have been engaged in a game of one-upmanship over which company can fit the ...

We may receive a commission on purchases made from links. The Duramax 6.6L V8 diesel engine was a huge moment for General Motors' heavy-duty trucks. Even though it looks pretty similar on the outside ...

Duramax. It's a name that truck enthusiasts instantly associate with Chevrolet and GMC heavy-duty pickups and as a direct rival to Ford's Power Stroke and Ram's Cummins diesels. The 6.6-liter "DMAX," ...

The Duramax 6.6L V8 diesel engine was a huge moment for General Motors' heavy-duty trucks. Even though it looks pretty similar on the outside to the old LMM generation, underneath the hood and deep in ...