Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" ...

These substances stick to the intake valves, creating a sticky base layer ... These products ensure compatibility with modern engine components and deliver effective, long-lasting results.

Separating the crankcase from the intake manifold ... a replacement interval. The valve is an inexpensive, easily replaced example of the dozens of parts that can elicit a check engine light ...