Harley-Davidson Genuine H-D 360 Motorcycle Oil is developed and tested for use in Harley-Davidson motorcycles. Harley Davidson's 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.