10W-40 4 Stroke Full Synthetic Marine Engine Oil, 1 Quart

West Marine Full-Synthetic 4-Stroke Outboard Oil exceeds OEM and industry requirements and will not void engine warranty.

Exclusive custom additive package provides maximum anti-wear protection. Formulated in combination with a full synthetic base stock to ensure excellent protection from oxidation and oil breakdown even under extreme or high operating hour conditions. Ideal for all high-performance engines or heavy-duty commercial conditions. Exceeds OEM and industry requirements and will not void engine warranty.

Key Features

• Exclusive additive package to meet the demands of today’s high performance outboards
• For all high-performance engines or heavy-duty commercial conditions
• Exceeds OEM and industry requirements—will not void engine warranty
• Available in 10W-30, 10W-40, 20W-40 viscosities