Royal Purple 2-Cycle TCW III Racing is a high performance engine oil that is recommended for use in pre-mix gasoline two-cycle engines and is specially formulated to improve performance and reduce wear. Royal Purple 2-Cycle TCW III Racing has a synthetic solvency that keeps spark plugs and exhaust ports clean for maximum engine efficiency. This engine cleanliness, combined with 2-Cycle TCW III Racings low coefficient of friction promotes increased horsepower and engine speed.