The 2024 GMC Sierra 2500HD has powerful engine options and ... the six-speed automatic transmission mated to the base gas engine has been replaced with a ten-speed auto. Other widespread changes ...

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

We've tested a Sierra 2500HD Denali with the diesel engine, which returned 17 mpg ... Those who stick with the GMC's standard gas-fed V-8 should expect to see even worse fuel economy than with ...

Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.) Alternator ...

In 2012, the Sierra 2500HD received enhancements aimed at improving performance and comfort. Notably, the integration of the available 6.6-liter Duramax Turbo Diesel V8 engine paired with an ...

Let's start with what's under the hood: the GMC Sierra HD Jackal is powered by a massive 6.6-liter V8 engine, capable of ... The GMC Sierra 2500 HD Jackal not only stands out for its performance ...

GMC Sierra Denali pickup truck right for you? We'll tell you all about it here. Plush seats, current tech, and cameras all ...

Made in either short- or long-bed form, with two or four doors and with 2- or 4-wheel drive, optional dual rear wheels and with a choice of several impressively powerful engines, the Sierra can be set ...

The 2025 GMC Sierra 2500HD Pro Regular Cab Long Box is equipped with a[n]Gasoline 6.6L V-8 engine that can produce ... 2500HD Pro Regular Cab Long Box's fuel tank? How efficient is a 2025 GMC ...

The 2024 GMC Sierra 2500HD Pro Regular Cab Long Box is equipped with a[n]Gasoline 6.6L V-8 engine that can produce ... 2500HD Pro Regular Cab Long Box's fuel tank? How efficient is a 2024 GMC ...