Fully synthetic motor oil specifically recommended for certain Harley-Davidson engines, primary drives and transmissions, among others. The high-quality formulation ensures excellent resistance to wear and thermal stress even under extreme operating conditions. Optimum lubrication, excellent engine cleanliness and the best wear protection are therefore guaranteed. Harley-Davidson specific oil usable in 4-stroke engines, certain primary drives and transmissions with or without wet clutches where a fluid meeting current product specification is required. Observe the manufacturer's instructions! Excellent wear resistance. Outstanding corrosion protection. High engine cleanliness. Stable to aging and stable viscosity. Outstanding high temperature stability.