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

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 ...

New diesel V8 will be GM's biggest passenger vehicle engine ever, just as diesel fuel prices soar to excessively high record prices.

GM is giving heavy-duty truck buyers an early look at its next diesel engine. The automaker released a Mongoose teaser video for the new 8.3-liter Duramax turbo-diesel V8 headed to the refreshed 2027 ...

We don't know much about the new Duramax, but its name gives us a clear indication of its mission statement: beat Ford's new Power Stroke V8, the Scorpion.

General Motors has confirmed the rumored 8.3L Duramax Turbo-Diesel V8 engine, code-named Mongoose, for the 2027 Chevy Silverado HD and 2027 GMC Sierra HD.

The largest among the Big Three in Detroit has released teaser footage of the much-awaited Megamax, which is actually codenamed Mongoose ...

GM has confirmed that it will debut a new, Ford Super Duty hunting 8.3L version of the Duramax diesel dubbed the 'Megamax' in its 2027 model year HD pickups.

General Motors' new HD engine has a clear target: Ford.

General Motors has an answer for pickup buyers who hate stopping for fuel: a bigger tank and its familiar diesel inline-six. Pair the two in a rear-wheel-drive 2027 Chevrolet Silverado 1500 or GMC ...

The 2027 Silverado HD and Sierra HD are getting an enormous new 8.3-liter Duramax turbodiesel V8 nicknamed Mongoose ...

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