The engine oil cooler on GM's 6.6-liter Duramax diesel keeps engine oil and coolant apart. When a Duramax oil cooler cracks, ...

General Motors is escalating the heavy-duty pickup horsepower war with an all-new 8.3-liter Duramax turbo-diesel V8 producing 555 horsepower and 1,230 pound-feet of torque. We had our first ...

General Motors is upsetting the apple cart with its formidable new truck challengers for the 2027 model year. The Chevrolet Silverado 1500 and GMC Sierra 1500 full-size trucks are completely ...

Joel was previously an editor at Autoblog for nearly a decade, covering cars from humble economy hatchbacks to high-end sports cars. He has extensive driving experience with plenty of track time, and ...

Last week, GM announced a list of specs for the new 8.3L V8 L6P turbodiesel Duramax, also known as the Mongoose, dropping in with a class-leading 555 horsepower and 1,230 pound-feet of torque. Those ...

The speculation regarding a two-diesel engine lineup for 2027 is over. According to GM Authority, the 8.3-liter Duramax replaces the outgoing 6.6-liter unit as the only diesel option for the 2027 ...

At 555 hp and 1,230 lb-ft of torque, GM's new diesel is the segment's top performer. It's also a cheaper upgrade over the gas ...

At 555 hp and 1,230 lb-ft of torque, GM's new diesel is the segment's top performer. It's also a cheaper upgrade over the gas engine than Ford and Ram's diesels. Anyone in the market for a new pickup ...

GM heavy-duty engines include a new 555-hp Duramax diesel and an enhanced 412-hp gas V8 for the 2027 HD pickups.

GM Authority has learned that GM introduced a revised oil pan design for diesel-equipped units of 2026 Silverado and Sierra ...