Finally one single lubricant in stead of 3 different oils for engine, transmission, and primary. Spectro Heavy Duty Platinum advanced full synthetic motorcycle lubricant is specifically designed to handle all the difficult and unique lubrication tasks in modern American-made V-Twin motorcycles, air cooled as well as liquid cooled. •For use in all Evolution, Twin Cam, and V-Rod engines new or used •For use in all Evolution, Twin Cam, and V-Rod transmissions, providing smooth and quiet shifting •For use in all Evolution, Twin Cam, and V-Rod primary chain cases and wet clutches Spectro Heavy Duty Platinum Full Synthetic is a blend of PAO synthetic base oils with Spectro's new Spectra-Syn technology and the latest A.P.I. SH/CF-4 CG-4 technology additive package fortified with additional anti-wear and anti-foam additives to provide smooth shifting characteristics in motorcycles with transmissions that share the engine lubricant and motorcycles with separate transmissions and clutch cases. Now, you can use one lubricant for all three applications. Since Spectro Heavy Duty Platinum Full Synthetic uses no Viscosity Index improvers, there is virtually no viscosity breakdown in a motorcycle gearbox or clutch case environment. It Is the ideal choice for all four-stroke V-Twin motorcycles where a full synthetic, high performance oil is desired for touring, competition, and long distance use. Observe manufacturers' recommendations for viscosity and change intervals. Recommended for use wherever an A.P.I., SF, SG, SH or CF-4 and CG-4 oil is specified. Exceeds Harley warranty requirements including the HD 360 standard as well as petroleum industry standards A.P.I SF, SG, SH, and is A.P.I. CF-4 & CG-4 approved.