*** NO LONGER AVAILABLE *** Uses proven manganese (MMT) technology to raise the octane level of LRP, unleaded or leaded petrol. Increases the octane number (RON) by 2 to 5 points. Provides a very effective guard against valve seat recession by forming a protective layer on the valve seats, replicating the effect of lead. Reduces and prevents pinging of the engine. Avoids mechanical damage caused by pinging. Improves engine performance and acceleration. Lowers fuel consumption. Can be used in leaded or unleaded petrol. Does not contain lead components. Safe for use with catalytic converters and turbochargers.