Meets all National Marine Manufacturers Association standards for FC-W oil. Engine oils blended for marine use are different than those for use in automobiles:

• Specially formulated with rust and corrosion inhibitors to protect engines in both fresh water and salt water marine environments.
• Shear-stable formula helps prevent viscosity breakdown in high load, high rpm conditions, for superior viscosity retention.
• Contains anti-wear additives to provide better protection of bearings.
• Contains a superior anti-foaming package to reduce oil foaming during high rpm operation.