Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why ...

In an era where the powertrain is increasingly seen as either electric or petrol, the diesel – or oil burner to many – powers this Mazda with the unmistakable hum of a straight-six 3.3-litre unit.

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 ...

How does a 106-year-old company built on diesel engines evolve to thrive in a decarbonized future? Jennifer Rumsey, SM ’98, the chair and CEO at Cummins, is leading the way to answer that question by ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

Mazda is a brand known for sporty, fun-to-drive vehicles, but it’s also earned a reputation for engineering excellence and surprising engine durability. However, not all Mazda engines are created ...

Mazda’s SKYACTIV-Z tech could change the way automakers and drivers look at gas-powered engines amid today’s significant EV investment push. Expert engineer Masahisa Yamakawa at Mazda said that heat ...

Mazda's 2019 SkyActiv-X engine may have cracked the HCCI engine challenge. It uses a spark plug to address typical HCCI problems but can also run on compression alone. These engines are 20–30% more ...