TESTED-CERTIFIED for use in Harley-Davidson^® engine, primary chaincase and transmission applications, Screamin' Eagle^® SYN3^™ Full Synthetic Lubricant makes changing and topping off fluids a simple, one-product process. Developed with a proprietary three synthetic basestock formula, Screamin' Eagle^® SYN3^™ Lubricant is formulated to provide for long-term protection and engine cleanliness requirements, and to provide superior high-temperature protection for high-output engines. SYN3^™ Lubricant is formulated to maintain the coefficient of friction for proper clutch operation and to provide the proper lubrication to the primary chain drive. In addition, SYN3^™ Lubricant is designed to provide the correct lubricity for the anti-wear requirements of transmission gears and for improved seal protection. This formula is approved by Harley-Davidson^® for use in all stages of engine life and is not detrimental to the break-in stage of engines.