A 2025 GMC Sierra 3500 AT4 owner is reeling after his brand-new diesel dropped from 24 MPG highway to a measly 17 MPG, and ...

The first-generation 3.0-liter LM2 Duramax diesel engine was a GM product manufactured in Michigan. The engine became the first diesel for GM's Chevy and GMC light-duty trucks since 1997, and the ...

The 2024 GMC Sierra AT4X is getting an upgraded powerplant for the new model year. Where it once solely featured GM’s 6.2-liter V8 truck engine, it’s now set to offer Duramax diesel power as standard.

View post: 1969 Datsun 510 For Sale With Racing Homage Modifications Changes are afoot for the 2024 GMC Sierra 1500 lineup. The one ringing the biggest bells for the off-roading crowd is the engine ...

The 2024 GMC Sierra 1500 AT4X now comes standard with GM's Duramax diesel 3.0-liter inline-six. While it has less horsepower, the diesel's 495 pound-feet of torque is 35 more than the optional ...

Since its introduction in 2022, the off-road-focused GMC Sierra 1500 AT4X has exclusively employed GM’s familiar 6.2-liter gasoline V-8. The AT4X model is now getting a welcomed powertrain addition ...

Theo has dedicated his life to cars. He has studied the only Automotive Journalism course in the world located at Coventry University and describes this passion as a clinical obsession. Give Theo four ...

During our first drive of the 2020 Chevrolet Silverado 1500 with the Duramax 3.0-liter diesel, our fuel economy results were astonishing after a 30-mile test loop being driven for maximum mileage: ...

General Motors is dropping the price of its diesel pickup engines to leverage the feature’s appeal to new customers. The turbocharged 3.0-liter inline-six cylinder motor is optional on several trim ...

GMC's Denali-branded vehicles are known for being more ostentatious than the rest of the lineup, and the Sierra 1500 is no exception. The Denali Ultimate trim level was added for the 2022 model year ...

GMC announced updates to its 2020 Sierra half-ton pickup truck, including much-needed adaptive cruise control, a 3.0-liter turbo-diesel engine option, improved towing cameras, and expanded ...