Having worked through the data, we may have just found the most reliable diesel engine going into 2026. As it stands, there ...

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 ...

Gale Banks and the rest of the crew at Banks Power have tried one way after another to kill their Duramax L5P diesel test engine, but so far, it just ain’t happenin’. People had their doubts when they ...

General Motors has been using Duramax diesel engines in certain workhorse models for nearly a quarter century. The 6.6-liter V8 version which powers Chevy Silverado 2500/3500HD and GMC Sierra Heavy ...

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 ...

General Motors has issued a service update for certain examples of the Chevy Silverado HD and GMC Sierra HD pickup trucks equipped with the 6.6L L5P V8 Duramax diesel engine due to an issue related to ...

Known under the VIN code Y, the L5P Duramax is the latest evolution of the 6.6-liter turbo diesel that powers the Silverado HD and Sierra HD. Introduced for the 2017 model year and mated exclusively ...