The off-road-focused 2024 GMC Sierra AT4X trim of the GMC Sierra 1500 lineup will feature the new 3.0L I6 LZ0 turbodiesel Duramax engine as its standard powerplant, GMC just announced. GM assistant ...

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.

The 2024 GMC Sierra 3500 HD represents the fifth model year of the fourth-generation full-size heavy duty chassis cab, for which it receive a mid-cycle refresh. This refresh follows the 2020 Sierra ...

General Motors Co. is investing $920 million at its Ohio Duramax operations for production of diesel engines for future heavy-duty trucks, the company announced last week. The investment supports GM's ...