In the realm of powerful American engines, few manufacturers can claim to have reached the heights that Chevrolet has. Sure, the likes of Cummins and Ford have offered great competition, but even they ...

With the truck's reservation period beginning in Brazil, General Motors has just revealed that the updated 2025 Chevy S10 debuts a new generation of powertrain. The automaker revealed all the features ...

When General Motors decided to make a diesel engine a permanent part of its light-duty truck lineup in 1982, it partnered with Detroit Diesel for a 6.2-liter V8 rated at 130 horsepower and roughly 240 ...

As GM Authority has obsessively covered in the past, the refreshed 2025 GMC Yukon is poised to introduce a wealth of updates and changes over the preceding 2024 model year. Among these will be a ...

While there has been a lot of chatter surrounding hybrids, electrification, and the ever-increasing attractiveness of crossover SUVs, it’s difficult to miss just how popular the growing class of ...

About two decades after the launch of the 6.6-liter Duramax V8, GM's 3.0-liter Duramax inline-six turbodiesel arrived in 2019 with a promise to deliver "outstanding fuel economy, great horsepower, and ...