Because diesel vehicles do not use spark plugs, they must rely on higher compression ratios to ignite the diesel fuel without ...

Revolutionary, they said. A world first, they said. Utilizing compression ignition, a method of gasoline combustion that the automotive world has been trying to perfect for over two decades, commanded ...

Mazda has announced an entirely new engine in its line-up, which will mark its debut under the hood of the CX-60. We are writing about the 3.3-liter, inline-six-cylinder diesel engine that Mazda calls ...

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 ...