We love ourselves a good oddball engine, and tiny, scrappy Mazda certainly must be responsible for more such engine concept patents per market-capitalization dollar than any other. We just discovered ...

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 ...

IRVINE, Calif.—Despite rumors to the contrary, the internal combustion engine is far from dead. Recently we’ve seen several technological advances that will significantly boost the efficiency of ...

Automotive futurists and savvy engineers expect battery EVs to eventually handle all our light-duty personal transportation and most of our urban/short-distance hauling needs. But they also disagree ...

You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an engine's fuel efficiency?

There is no shortage of people around the world today who seem pretty certain that the days of the internal combustion engine (ICE) as the primary form of propulsion for transportation are effectively ...

Being knowledgeable and aware of the inner workings of your vehicle can be pretty helpful at times: for instance, if your vehicle brakes start squeaking or your engine will overheat too often. Doing ...

Piston rings are the seals in your cylinders, giving you better compression and power, but what happens if they wear or break? And how can you spot the signs?