The search for alternative fuel sources has been accelerating in response to environmental concerns and dwindling petroleum reserves. Human ingenuity has led to the exploration of some of the most ...

Meet Rev Force, a clean two-stroke with a rotary valve, supercharged intake, 220 hp, 221 g/kWh BSFC, and multifuel support ...

Mazda is no stranger to baffling car experts with an out-of-the-box engine design, and its latest patent continues this trend of innovation with interesting results. Their new six-stroke engine design ...

Modern Hemi engines have some unique features that might leave owners wondering if they need to fill their car with the ...

Diesel-powered trucks date back to 1923 when one of Karl Benz' early companies — Benz & Cie — installed a four-cylinder, 45-horsepower unit in a 5K3 truck chassis. It proved to be a winning ...

When Clessie Cummins founded the Columbus, Indiana-based Cummins Engine Company in 1919, it was built on a spirit of innovation that continues to thrive after more than 100 years. That innovative ...