Every new internal combustion car and truck sold in America today is equipped with a four-stroke engine, as are the vast majority of motorcycles. Today, if you hear the loud, ringing song of a ...

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, ...

Renault doesn't sell any vehicles in the U.S.—unless you consider some Nissans that share a global platform—but there's a reason this tiny diesel from France is interesting: it gives us an idea of how ...

Everllence officially unveiled its new, dual-fuel ME-LGIA (-Liquid Gas Injection Ammonia) engine at a two-day event at its ...

Conventional wisdom suggests that our faithful internal combustion (IC) engines are heading the way of the buggy whip. The lithium-ion battery has arrived, emissions standards are tightening, and ...

Everllence has unveiled its new, dual-fuel ME-LGIA (-Liquid Gas Injection Ammonia) engine.Using the Diesel principle and the ...

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 ...

When I went to school for engine repair in the 1980s, we studied the differences between two- and four-stroke engine cycles extensively. If you're not familiar with engine strokes, understanding the ...

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, ...