A highly sophisticated SAE 50 part-synthetic two-stroke racing oil, Castrol A747 is formulated to provide the maximum possible protection against wear and piston seizure together with optimum control of combustion deposits. Castrol A747 mixes easily with both leaded and unleaded gasoline and is intended for use in engines employing fuel/oil mixture lubrication at ratios of up to 40 to 1 or as recommended by the engine manufacturer. Ideal for racing or competition 2 T. engines. Castrol A747 contains no octane boosters or substances specially designed to improve the detonation characteristics of the fuel. Contains 1 liter.