The 2026 Sierra 1500 offers a broad variety of options, and now, GM Authority is taking a closer look at all of the 2026 GMC ...

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 ...

6.2-liter V8 – delivers 420 horsepower, 460 pound-feet of torque, max towing of 13,000 pounds (depending on configuration). It comes standard on the Denali Ultimate and is optional for SLT, AT4, AT4X ...

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 ...

Remember when the Ford Motor Company, General Motors, and what used to be Chrysler all offered light-duty pickup trucks with available turbo diesel oomph? Only the largest of the Detroit-based ...

GMC continues to expand its premium Denali Ultimate portfolio with the 2026 GMC Acadia Denali Ultimate, providing exclusive design, comfort, and technology features for its popular midsize crossover ...

The GMC Sierra EV Denali Max Range is a new breed of GM EVs that eliminates range anxiety. The easy Tesla Supercharger access is icing on the cake. The Denali EV I tested this week showed over 500 ...

What started as a simple oil change recall on GM’s popular L87 6.2L engines may now be snowballing into something much bigger, and something that's much more expensive. According to a surprising ...

This week we have the refreshed 2025 GMC Yukon Denali Ultimate. This is a lot new for 2025, especially with the Ultimate, and it inches one step closer to the big daddy Cadillac Escalade. New for 2025 ...

The Acadia got bigger, and in nearly every way, better when a new generation debuted last year as a 2024 model. Prices start at $42,900. The loaded Denali AWD I tested stickered at $63,015. I'm taking ...

Garret Donahue, a Southern California native, has been involved in car culture for the majority of his life. From organizing local group drives to attending open track days, Garret dives deep into the ...