We've covered the broad strokes of everything you need to know about Chevy's 6.6L Duramax diesel engine from a few angles at SlashGear over the years. However, if you're new to diesel pickups, we ...

If you own a 2017–2025 Chevy Silverado or GMC Sierra HD with the 6.6L L5P Duramax, you already know it’s a powerhouse—445 hp and 910 lb-ft from the factory. But even this engine has limits, and most ...

The world of diesel performance has undergone a tremendous amount of change in recent years. For all intents and purposes, on newer pickup trucks, SUVs, and vans, gone are the days of individuals—and ...

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 ...

General Motors first introduced the 6.6L Duramax V-8 diesel engine for its ’01 Chevrolet and GMC light trucks. GM cooperatively designed and built the engine with Isuzu to replace the 6.5L oil-burner ...