100% synthetic racing motor oil. Based on ESTER Core® technology, which exceeds all existing standards in motorsports. 300V 4T Factory Line 10W-40 is specifically designed for competition motorcycles with four-stroke engines with a wide range of revolutions and operating temperatures: racing motorcycles, MotoGP, SuperSport, Superbike, uphill and mountain races, etc. Through technical collaborations with the most prestigious racing teams, MOTUL has developed a wide range of lubricants for sports and racing motorcycles. MOTUL has selected the esters over other high performance synthetic bases and combined them with an innovative combination of additives to create a perfect synergy. This more advanced Ester technology allows maximum engine power without compromising reliability or wear resistance. Its formulation offers very high lubricating properties that reduce friction and wear. Thanks to this less friction, power is increased while maintaining the performance of the lubricated clutch. It also provides excellent gearbox protection thanks to its innovative combination of anti-wear additives and stable oil pressure regardless of operating conditions.