Castrol MAGNATEC clings, locks, and protects to deliver 50% better engine wear protection*. Helping to safeguard your engine's vital components by: Forming a resistive barrier between metal contact points in the valvetrain Managing abrasive piston deposits, guarding against cylinder liner wear Maintaining timing chain tension and engine synchronicity by minimising chain damage and elongation Preserving engine bearings from corrosive wear. * Tested using an industry standard wear test, measured versus relevant industry limit.