Diesel engines and gasoline engines are so fundamentally different that it’s possible to do real damage simply by filling up your car with the wrong fuel. Converting a diesel engine to actually ...

Even if you don't plan on ever owning a car with a diesel engine, you may still want to know how they compare to gas engines ...

While diesel engines don't need spark plugs, they do need air ventilation for proper combustion. This is a problem for vessels traveling underwater, such as submarines. Yet diesel submarines exist and ...

Modern diesel submarines seem to break a basic rule of engines: they keep moving underwater even though diesel power needs oxygen. The trick is that these boats are really two propulsion systems in ...

As a diesel owner, I know the hectic heartbreak of trying to keep such an unpopular drivetrain up and running in the U.S. Most people think of big semi trucks when they think of diesel, or they think ...

As the world grapples with the prospect of damaging climate change, the automotive industry is pushing hard to transition towards less-polluting technologies. Amidst a broader move to electric drive, ...

The engines that power the vehicles we drive are exceptional machines. They're capable of generating insane amounts of power in a relatively confined space, and they can generally be expected to ...