Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto, Gottlieb ...

Mike Wolanin | The Republic A view of Cummins Engine Plant 1 from the fifth floor of the newly renovated Cummins Technical Center in Columbus, Ind., Wednesday, Nov. 6, 2024. The technical center was ...

You may have heard your car has a four-stroke engine, but you're not sure what that means. Why are there four? And what is a stroke, anyway? A modern gas engine most commonly uses pistons and a ...