Automotive giant General Motors has filed patents for a two-stroke engine of the type whose excess emissions took it off the road decades ago as a technology seen as having no future. The patent is ...

The last time you may have heard that distinct, high-pitched sound of a two-stroke engine was probably when you fired up a leaf blower. That's because they have fallen out of fashion when it comes to ...

Unless you're really into dirt bikes, you probably haven't touched a two-stroke engine in decades — if you ever have. These mechanically simple motors combine the four strokes we all know and love ...

Engine maker claims a world first for large commercial vessels, with shipboard trials due from April 2028 and Kawasaki developing liquefied hydrogen bunkering equipment.

GM has filed a patent application for a two-stroke engine valve system. The patent application is tagged with patent number US 2025/0354528 A1 and was filed with the United States Patent and Trademark ...

The rattle, buzz and clatter of a two-stroke engine is unmistakable, but it isn't necessarily good for the planet. That's because A) two-strokes burn oil and B) they are inefficient. Lubricating oil ...