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," ...

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 ...

We’ve shown you spy photos and shared what our sources have told us, but now GM has pulled back more of the veil surrounding its next-generation heavy-duty Duramax diesel V-8 engine program. The ...

In the first installment of this two-part series ( “White-Glove Treatment - Duramax Power and MPG Upgrade"), we performed an experiment using Hypertech’s Max Energy 2.0 programmer on Chet Kokkeler’s ...

The LML fixes this by using a dedicated hydrocarbon injector placed right in the exhaust stream. Before this, the LMM generation relied on the engine's eight main fuel injectors to spray raw diesel ...