For decades now, the big three American automakers have been engaged in a game of one-upmanship over which company can fit the most powerful and torquiest diesel engines in their trucks. And, just as ...

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," ...

Before GM introduced its L5P turbodiesels, there was a standout engine that featured enhanced fuel economy and greater dependability than previous iterations from the automaker. The GM LML Duramax ...