High mileage on a 6.6 Duramax is less about a single scary number on the odometer and more about how that number lines up with the engine’s design, maintenance history, and known weak spots. The same ...

A perennial competitor to Ford's Power Stroke V8 and Ram's Cummins turbo diesel inline six-cylinder engines, the 6.6-liter Duramax is one of the most popular diesel powertrains for heavy-duty trucks, ...

We may receive a commission on purchases made from links. Oil changes are an essential part of car care. Changing the oil yourself is the next level in this care, and it's a good reason to put ...

When it comes to heavy-duty diesels, enthusiasts and truck owners inevitably circle back to the best American diesel engines: Ford's 7.3L PowerStroke, Dodge's 5.9L Cummins, and GM's 6.6L Duramax. If ...

Fleeing the 6.2L V8 nightmare for a 3.0L Duramax? You may have traded a ticking time bomb for a slow leak. Owners report alarming oil thirst, yet GM calls it "normal." Is the diesel a safe haven or a ...