Light-duty customers have a single diesel option for model year 2026, that being the 3.0-liter Duramax inline-six turbo ...

When it comes to heavy-duty diesels, enthusiasts and truck owners inevitably circle back to the best American diesel engines: Ford's 7.3L PowerStroke, Dodge's 5.9L Cummins, and GM's 6.6L Duramax. If ...

The Duramax V8 L5P has a displacement of 6.6 liters, which is slightly smaller than the 6.7L engines offered by Ford and Ram. Despite this, the L5P delivers 470 horsepower at 2,800 rpm, making it ...

The Chevy Silverado 1500 and Ford-150 are fierce rivals, traditionally going tit for tat in the light-duty full-size pickup segment. Now, GM Authority’s spy photographers have caught images of a Chevy ...

For more than a year now, we've been grinding about how a diesel engine in a muscle car could create a vehicle that would be blindingly fast, yet achieve some very good fuel economy numbers. Well, ...

Last winter, I put a Garrett PowerMax Stage 1 turbocharger on my ’07 truck’s 6.6L Duramax engine. The truck ran great until I slipped my 30-foot toy hauler on the gooseneck. On the first long grade I ...