Despite its critics and moves toward electrification, the internal combustion engine is not yet dead. Though its design for passenger vehicles may have begun to reach its apex with Mazda’s Skyactiv ...

Mazda unleashed its all-encompassing Skyactiv automotive technologies in 2010 to increase fuel economy with zero penalties to handling and performance. Although Skyactiv became increasingly known for ...

Performance diesel engines are usually the realm of European automakers, but the highest-revving diesel actually comes from ...

Making sure your engine has proper compression is vital for its health. You can rely on one of two methods to test this, but ...

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...

You probably know how diesel engines work, but it's one thing to understand the theory and a whole different thing to actually see how diesel fuel ignites.

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...