As we all know, sometimes things just don’t pan out as expected. As we covered in the first report of this two-part series (“Pumped Up,” May 2019), replacing the truck’s stock Bosch CP4.2 ...

The Iconic 2011-2016 6.6-liter LML Duramax V-8 engine is the capstone of GM’s Pre-L5P turbodiesels. Duramax. It's a name that truck enthusiasts instantly associate with Chevrolet and GMC heavy-duty ...

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 ...