Valvoline 40463 Pyroil 12 oz Octane Treatment Octane treatment reduces the need for high-octane gasoline, Removes power robbing deposits, Maintains new car performance, Restores lost performance, Restores lost performance, Contains no harmful solvents, Safe for catalytic converters and oxygen sensors, 12 oz. Valvoline 40463 Pyroil 12 oz Octane Treatment Features: Octane treatment Reduces the need for high-octane gasoline Removes power robbing deposits Maintains new car performance Restores lost performance Restores lost performance Contains no harmful solvents Safe for catalytic converters and oxygen sensors 12 oz