The L5P and LBZ are considered two of General Motors' best Duramax diesel engines, but each comes with its own strengths and ...

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 ...