The GM L5P Duramax is a turbo-diesel engine produced by General Motors for use in full-size heavy-duty (HD) pickup trucks. Displacing 6.6 liters in a V-8 configuration, the L5P is part of a new ...

The L5P Duramax diesel V8 is what powers heavy-duty work trucks like the 2025 Chevy Silverado 2500 HD and is an amazing powerhouse. It didn't exactly start off that way back in 1984 when GM first ...

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 ...

General Motors and heavy-duty trucks go a long way back. For the time being, the Chevrolet Silverado HD and its GMC-branded twin do the heavy lifting for the Detroit-based automaker. The Silverado HD ...