KORYO RACER SL 15W-40 High Performance 4 Stroke Motorcycle Oil DESCRIPTION KORYO RACER SL 15W-40 is high performance engine oil for modern engines, specially designed for use in modern 4 stroke engines using advanced additive system, it provides excellent oxidation stability, long life, engine cleanliness and excellent transmission performance by preventing clutch slippageâ??, it is recommended for motorcycle where API SL and JASO MA or JASO MA2 performances are recommended PERFORMANCE API SL, JASO MA2 PACKAGE 1L, 200L Plastic Can/Steel Barrel