Making a new engine while the world’s rushing to switch to electric vehicles only? Mazda said, “why not?” There’s a new innovator in town and it wants you to pay attention. Mazda’s SkyActiv-X engines ...

One of the most significant contributions in the history of propulsion technology came from a 19th-century engineer named Rudolf Diesel. While his idea was patented in the 1890s, it wouldn't be until ...

It’s a shame that Detroit Diesel no longer makes marvelous two-stroke engines, at least for novelty’s sake. Of course, they were loud, inefficient and decisively terrible for the environment, so there ...

The French company Renault is taking a different approach to making diesel engines more efficient, affordable, and cleaner for cars and light trucks. The "Powerful" (Powertrain for Future Light-duty ...

Two-stroke engines used to be ubiquitous in dirt bike racing, thanks to their lightweight construction and horsepower. Packed in a dirt bike frame, they make a motorcycle playful in the corners and ...