Harley-Davidson Genuine H-D 360 Motorcycle Oil is developed and tested exclusively for use in Harley-Davidson motorcycles. Our unique additive package helps prevent engine wear and helps keep your engine cooler, cleaner, free of sludge, varnish and corrosion. Harley-Davidson V-Twin motorcycles operate at higher temperatures than water-cooled automobiles, thus a specific high temperature additive package is necessary to protect the engine. Available in SAE 10W40, SAE 20W50, SAE 50 and SAE 60. Refer to your Harley-Davidson owner�s manual for the proper SAE grade recommendation based on the climate and temperature range you ride in.