A new device from Range Technology turns off Dynamic Fuel Management and auto start/stop in full-size trucks and SUVs, like ...

The GMC Sierra's Max Trailering package isn't compatible with the Sierra Denali trim level. Now, we’re taking a closer look at why the Denali doesn't offer it.

GMC Sierra 2500 HD Crew Cab Pro 4x4 features the long bed configuration and has just 284 miles on its 6.6-liter V8 engine ...

Coming in at number one on our list is an unsuspecting hero of the Diesel World. It's the outgoing Nissan Titan XD. It's powered by a 5.0-liter Cummins turbo-diesel V-8 that outputs 310 horsepower and ...

The 6.6 Duramax is one of the most powerful engines for heavy-duty trucks like the Chevy Silverado and GMC Sierra, but how ...

Which pickup trucks have the best diesel engines? These oil burners are made to deliver excellent power for towing and ...

The Duramax diesel is a series of diesel engines manufactured by General Motors. Here's a breakdown of the generations over ...

When you think of heavy-duty trucks, images of construction sites and rugged workhorses typically come to mind. However, GMC's Sierra Denali 2500 HD (Heavy Duty) challenges these conventional notions ...

Actual terms vary by lender. GMC Certified overall i like the truck alot, its a very dependable vehicle. it has its little quirks for a used truck. there's little things like the drivers door ...

Engine, Vortec 6.0L Variable Valve Timing V8 SFI E85-compatible, FlexFuel capable of running on unleaded or up to 85% ethanol (360 hp [268.4 kW] @ 5400 rpm, 380 lb-ft of torque [515.0 N-m] @ 4200 ...

Engine, Vortec 6.0L Variable Valve Timing V8 SFI E85-compatible FlexFuel capable of running on unleaded or up to 85% ethanol (360 hp [268.4 kW] @ 5400 rpm, 380 lb-ft of torque [513.0 N-m] @ 4200 ...

: This review has been updated with instrumented test results.Any truck is a big investment, but in the GMC Sierra HD AT4X AEV's case, the investment isn't the only thing that's big. At 8720 pounds, ...