You can't just grab any old bottle of oil and pour it into your engine, but why is that? Here's the main distinctions between ...

General Motors may not be building a bike engine, but this two-stroke concept has real potential for motorcycle engineering.

If we ran a poll on Visordown tomorrow asking if people prefer two or four-stroke engines, the ringy-dingy two-smoke would ...

GM has filed a patent application for a two-stroke engine valve system, which could enhance efficiency and control compared ...

GM modern two-stroke tech aims to revive lightweight, efficient combustion engines with a new patent using electronically ...

GM's Detroit Diesel division once made a two-stroke engine. A certain trait about this engine would lead to it getting the nickname of "Screaming Jimmy." ...

Editor’s Note: This article previously appeared in a different format as part of The Atlantic’s Notes section, retired in 2021. In response to the item immediately below, which kicked off this Thread, ...

The Tahoe Regional Planning Agency’s governing board recommended a ban from Lake Tahoe on all old-technology two-cycle engines by 1999 late Wednesday, but will prepare an ordinance and discuss it at ...

An Australian-designed clean two-stroke motorcycle engine could soon become a reality after attracting the interest of a Melbourne-based investor group. Sydney-Based inventor Basil van Rooyen says his ...

Years ago, the choice was clear: When it came to 2 stroke vs 4 stroke outboard motors, 2 stroke won every time. Two stroke motors offered a better power-to-weight ratio, were cheaper to manufacture, ...

March 26, 2008 Ricardo and a consortium of automotive partners today announced the completion of an advanced prototype research programme based on the highly innovative 2/4SIGHT engine concept. This ...