Diesel engines like the 3.0L Duramax require special maintenance, including the use of DEF, or Diesel Exhaust Fluid. Now, GM ...

The Duramax engine family has featured many three-letter product codes over the years, one of which is LML. But what does the code stand for?

This near-new Silverado 4500HD flatbed is a genuine workhorse with 6,000 miles with its 6.6-liter Duramax diesel, and serious ...

Forbes contributors publish independent expert analyses and insights. Michael Teo Van Runkle is a journalist who covers the auto industry. For the past two years, the Silverado ZR2 pickup truck served ...

Two brand-new 2025 trucks battle for the win. Which one is a better choice: the half-ton GMC Sierra or the heavy-duty Chevrolet Silverado? A fuel-efficient 3.0-liter Duramax or a 6.6-liter Duramax V8?

What Makes These Trucks Special? Ram's Power Wagon is the gold standard of heavy-duty off-roaders and has been since its return in 2005, but the truck has always lived in a niche of its own. Lacking a ...