GM didn’t give all of its engineering attention to the new diesel engine. The gas 6.6-liter V-8 has been updated, as well.

A big new diesel engine is just one of several notable improvements coming to 2027 Chevrolet and GMC heavy-duty pickups.

General Motors has teased a new Duramax diesel 8.3-liter engine that it has dubbed “Mongoose.” GM’s teaser video took shots ...

GM almost revolutionized pickups in the late 2000s with a high-tech Duramax diesel. It was eventually canceled due to the recession, but part of it still lives on in the new 8.3-liter "Mongoose." ...

GM’s new 8.3L Duramax Mongoose is coming for 2027. Here are five things we know about the massive diesel V8—and five we still don’t.

GM's new 8.3-liter Duramax Mongoose targets Ford's Power Stroke and Ram's Cummins, but record diesel prices could hurt HD ...

The battle for supremacy in the pickup market is perhaps America’s most fiercely contested automotive arena. The diesel heavy ...

GM calls it the "Mongoose," and it promises to beat Ford's "Scorpion" 6.7-liter Power Stroke that makes 500 hp and 1,200 ...

GM has confirmed its all-new Mongoose 8.3L Duramax turbodiesel V8, but one very important question remains: how much power ...

The 2027 Silverado HD and 2027 Sierra HD will offer a new Duramax diesel engine, as GM Authority covered. The question is - ...

GM unleashes the colossal 8.3L Duramax Mongoose V8 to take on Ford and RAM rivals.

Duramax engines are known for being reliable, but even they need regular engine oil changes to stay at their best. Here's how ...