Rotary engines often require unique forms of maintenance, and sometimes, that means premixing oil and gas. Here's how to know ...

In a world dominated by pistons, the rotary engine was something different for motorists. It was the vision of German engineer Felix Wankel, built on the belief that the up-and-down motion of pistons ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

If there's one thing forever associated with the Wankel rotary engine, it's Mazda. Powering production vehicles from the Cosmo's launch in May 1967 to the last RX-8 leaving the plant in June 2012, the ...

The piston engine may be the most common type of internal combustion engine found in consumer automotive vehicles. That doesn't mean it's the only option drivers have ever had access to. In the 1960s, ...