What’s 220 pounds to General Motors’ new 6.6-liter Duramax diesel V-8 engine? Not much, based on the minuscule differences between the performances of the 2017 GMC Sierra 2500HD tested here ...

Tested: 2017 GMC Sierra 2500HD Diesel 4x4 Crew 2018 GMC Sierra ... stops along the way to exercise General Motors’ new Duramax diesel engine and the Sierra’s enhanced workday skills.

A Duramax diesel engine is also available ... 2024 GMC Sierra 2500 HD Denali Ultimate and 7.1 seconds in a 2024 GMC Sierra 2500HD AT4X AEV. Equipping the 2025 GMC Sierra 2500HD with its regular ...

For optimum low-end torque, the GMC Sierra 2500HD came with an optional Duramax 6.6-liter turbocharged diesel powerplant. An all-new GMC Sierra 2500HD surfaced for the 2007 model year revealing a more ...

The 2024 GMC Sierra 2500HD has done just that by pumping the power of its 6.6-liter Duramax turbo-diesel up to 470 horsepower and 975 lb-ft of torque, which gives its Crew Cab configuration a best ...

You don't have to worry about any of that with the 2015 GMC Sierra 2500HD Denali with its Duramax diesel engine, however, as its gross vehicle weight comes in at 10,000 pounds, making it a Heavy ...

At first glance, the 2024 GMC Sierra Denali 2500HD Denali Ultimate seems ... A refreshed 6.6-liter Duramax V-8 turbo diesel is standard for Denali Ultimate, but its 470 hp and 975 lb-ft of torque ...

Patrick "McRat" McSwain has been in the diesel performance industry for many years and is well-known for drag racing his '05 LLY Duramax, nicknamed Casper. If running 10-second quarter- miles is ...

If you like big trucks, or you tow a heavy load, I have one for you this week you'll love: The 2025 GMC Sierra 2500 Denali Ultimate ... bulging hood is a 6.6-liter Duramax turbo diesel engine ...

General Motors' Duramax engine is one of the most legendary diesel engines ... mid-way through 2004 for the Chevy Silverado ...