Update: the numbers for the new Duramax L5P are officially in. First things first: the current 6.6L V-8 Duramax LML under the hoods of GM’s 2016 model year trucks is rated at 397 horsepower and 765 ...

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 ...

The factory emissions systems, such as the DPF, EGR and DEF setup, aim to minimise pollutants on the LML Duramax. These systems can also cause exhaust restriction and heat-up in actual driving ...

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 ...

First arriving as a replacement for the 6.6L LML V8, the turbo-diesel 6.6L L5P V8 Duramax engine is an extremely robust and capable powerplant, producing upwards of 445 horsepower at 2,800 rpm and 910 ...

If you are new to the world of turbodiesel truck engines, there can be a whole lot to learn. Whether it's a Cummins, a Powerstroke, or a Duramax, these engines by and large stand as their own families ...