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 ...

You're probably familiar with the standard combustion process that powers most cars, but some engines use a more efficient ...

Engine compression ratios have become a hot topic ...

A diesel engine is simultaneously incredibly simple and incredibly violent, using compression as a means of ignition. This is because of the properties of diesel fuel: Namely, diesel is less volatile ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

The engine loophole rumours have sparked much debate.

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 ...

An engine loophole in the 2026 regulations has been the subject of recent meetings ...