Octane Booster is a special performance-enhancing petrol additive for race motorcycles. It increases RON and MON octane numbers for all common commercially available petrol (Race and E10). Octane Booster improves engine performance and reduces the risk of engine damage from knocking in the engine. Octane Booster provides a protective layer on valve seats for longer life and reduced valve impact. Suitable for 2-stroke and 4-stroke petrol engines. Safe to use in combination with catalytic converters and tuned engines.