10W-40 4 Stroke Synthetic Blend Marine Engine Oil, 1 Gallon

West Marine Synthetic Blend 4-Stroke Outboard Oil contains more performance-boosting additives than standard motor oil.

With a higher number of performance-boosting additives than automotive oil, this synthetic blend meets and exceeds the needs of high-performance outboards. Its special formula protects outboards from friction damage and engine wear. Features outstanding viscosity at low temperatures, greater detergency and resistance to engine buildup. Exceeds all 4-stroke outboard manufacturers' requirements.

Key Features

• Greater detergency
• Exceeds the requirements of high performance outboards
• Will not void engine warranties
• Meets all 4-stroke outboard manufacturer’s requirements
• Outstanding viscosity at low temperatures
• Resists pollutant buildup