An engine is retrofitted with the ClearFlame combustion system, including a ClearFlame Engine Control Module. (ClearFlame) Cummins will introduce the X15N in 2024, a spark-ignited natural gas ...

This image shows how the shorter piston (right) allows a longer connecting rod and reduces the angle of the rod from vertical, thus reducing side thrust, on the D13 engine in the 2024 Volvo VNL.

Rotary engines have plenty of quirks, but they can still put up some impressive power figures. Here are some of the most ...

The company, owned by General Motors, discovered that a terribly toxic and volatile chemical called tetraethyl lead changed the way gasoline burned in the extreme temperatures and pressures created by ...

It’s not a dream; it’s a free piston engine and it might be the next major advance in car tech. When we think of automotive technology of the future, ...

For the engines included in this article, we've only selected engines that are distinguished by special quirks and features.

That engine went from being used for 16.30 hours per day on the Cat pistons to 18.34 hours per day on the SoA pistons by the time it was removed for servicing once more in 2017 after 915 days in ...

Future Engines. Originally published in the January 1989 issue of Hot Rod magazine. HOT ROD Staff Writer Jan 01, 2023. ... plasma-faced piston rings, ...

That’s why I was so excited when I heard that INNengine of Granada, Spain had produced a opposed-piston engine that packed a pretty powerful punch in an extremely tiny package. There’s no ...

Rex, the engine of the future that may reach the American engine market in the next years. This is everything we know about ...