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 ...

New spy video shows Silverado HD prototypes testing in CO, supposedly with the 8.3L Duramax MegaMax engine. The question is - ...

Changes are afoot for the 2024 GMC Sierra 1500 lineup. The one ringing the biggest bells for the off-roading crowd is the engine swap headed to the AT4X trim. Right now, if you want an AT4X you ...

The GMC Sierra 1500 AT4X is slated to receive the updated 3.0-liter Duramax diesel engine as a powertrain option for 2024. Since the truck arrived in 2022, only the 6.2-liter gasser has been ...

The most extreme version of the Sierra 1500, the off-road-capable AT4X trim, will now be offered with a fuel-sipping 3.0-liter Duramax diesel engine. The torquey unit will come as standard on the ...

Our chance came in a two-wheel-drive 2020 GMC Sierra 1500 SLT crew cab with the apparently magical turbocharged 3.0-liter “baby Duramax” diesel engine. Related: The engine itself is pretty ...

The 2020 GMC Sierra 1500 AT4 took a bit of engineering magic to fit the new powerplant under the hood, but GM's 3.0L inline-six Duramax diesel has finally met the Sierra 1500 AT4.

The GMC Sierra Denali Ultimate with a Duramax diesel engine tops the Ford Lightning in towing use. The test 2023 GMC Sierra 1500 Denali Ultimate has a sticker price of $81,280, as pictured.

Of course, the 3.0L Duramax's primary shortcoming is its relatively low towing capacity: GMC hasn't released its own official numbers yet, but the Chevrolet Silverado 1500 diesel can only tow ...