Oil, Evinrude®/Johnson® Ultra 4-Stroke 5W–40 Best oil for high load applications. • Ultra Viscosity Stability: Resists viscosity and thermal breakdown • Ultra Sludge Protection: Engines stay cleaner and run more eficiently • Ultra Friction Reducing Properties: Improves fuel economy and power • Ultra Film Strength and Additive Package: Reduces wear and ofers superior corosion protection