Red Line® 20W50 Synthetic Motorcycle Oil

Red Line® engine and transmission lubricants have long been the choice of racers and knowledgeable engine builders. The thermal stability, film strength and reduced parasitic drag found in Red Line engine oil all contribute to lower operating temperatures, increased engine life and more power. This defines Red Line® motor oil as a superior product for air-cooled engines, the heart of all American motorcycles. Red Line’s transmission lubricants enhance smooth shifting, lower operating temperatures and reduce transmission noise. Red Lines’® racing heritage is reflected in all of their products…you’ll see more Red Line® products at the track than any other lubricant manufacturer for all of these reasons.

Red Line® synthetic motor oils use the most stable synthetic lubricant base stocks available and are formulated for wear protection and friction reduction across a wide range of engine operating conditions. Red Line® lubricants are unique because they contain polyol ester base stocks, the only lubricant base stock that can withstand the incredible heat present in modern jet engines.

Red Line® 20W50 Motorcycle Oil is the most popular choice for use in Harley® engines. The ultimate high temperature protection in engine oils, recommended for street use in air-cooled engines. Provides 25% more viscosity in bearings than petroleum 20W-50s. Zipper’s recommended for almost all street applications.