Torco SR-5R Race oil is developed under the most severe racing conditions and offers the highest level of performance and protection for highly modified engines. It is engineered to withstand extreme loads, constant severe temperatures and maximum engine revolutions. SR-5R utilises Torco's race specific MPZ technology which reduces frictional losses for maximising horsepower and torque.SR-5R Race oil is available in a range of viscosities to suit most engine types -0W20 - Recommended for use in racing or highly modified engines where 0W20 or 5W20 oils are specified. Used for maximum horsepower and torque gains.5W30 - Recommended for use in racing or highly modified engines where 5W30 or 10W30 oils are specified. Also recommended for late model sports cars and turbo / supercharged engines.5W40 - Recommended for use in racing or highly modified engines where 5W40, 10W30, 10W40 or 15W40 oils are specified. Commonly used in drag racing and oval racing. Ideal for engines used for both stree