The Duramax L5P is already a powerhouse, but smart upgrades and proper tuning can take it to the next level without sacrificing reliability. From advanced monitoring tools to first-to-market tuning ...

Add Yahoo as a preferred source to see more of our stories on Google. For decades now, the big three American automakers have been engaged in a game of one-upmanship over which company can fit the ...

GM's mass-market diesel engine has seen many variations, but these three stand out as the best.

Bruno started at Top Speed in 2022 and now serves as Senior Editor for ICE while also training writers across CarBuzz, HotCars, and TopSpeed. A car and motorcycle enthusiast, he enjoys writing about ...

Of the three United States automakers that offer diesel-powered heavy-duty pickup trucks, only two of those diesel engines are V8s. Those V8 diesel engines are the 6.6 Duramax found in offerings from ...

We may receive a commission on purchases made from links. The Duramax 6.6L V8 diesel engine was a huge moment for General Motors' heavy-duty trucks. Even though it looks pretty similar on the outside ...