Classic 4T 20W50 Mineral Motorcycle Engine Oil is specifically formulated for classic four-stroke motorcycle engines and transmissions requiring a 20W50 viscosity. It is expertly designed to support older air-cooled engines and transmissions where applicable, ensuring smooth and effective performance.Here are the key features of this engine oil:Viscosity and Application: With a 20W50 viscosity tailored for classic motorcycle engines manufactured before 1980, this oil ensures optimal engine performance and reliability, adapting smoothly to a range of operating conditions.ZDDP Technology: Featuring Zinc Dialkyl Dithiophosphate (ZDDP), this oil enhances engine durability by protecting against wear, thus extending the lifespan of your motorcycle's engine significantly.Wet Clutch Compatibility: Compliant with JASO MA2 specifications, this oil maintains a high friction profile that promotes smooth and consistent clutch engagement, thus improving your overall riding experience.Modern Additive