This is the reason why I want to start testing the Rotary Engine. Here’s a clip of the Mazda RX-8 Hydrogen Car being driven around by demonstrators. The Rotary Engine (Wankel Engine) that is the power plant of the RX-8 has certain characteristics that make it well suited for Hydrogen Fuel. Normal gasoline Piston Engines (Reciprocating Engines) can have over a hundred moving parts that rely on the lubricating properties of the gasoline fuel (before and after combustion) to operate optimally. Hydrogen, because of its cleaner combustion properties, does not offer the same lubricating effects. Fortunately, though, the rotary engine only has 3 moving parts and does not depend on the same lubricating approach as a piston engine to perform. It uses oil mainly to preserve the apex seals, which serves as a separator between the stages of operation - intake, compression, ignition and exhaust.
