Sierra 118-9554-2 15W-40 Heavy Duty Marine Engine Oil - 1 Quart

Sierra 15W-40 Heavy Duty Engine Oil is a premium multi-grade motor oil specifically formulated for marine and small engine applications. This high-performance lubricant provides exceptional protection for inboard and stern drive engines operating under demanding conditions.

Key Features:

• 15W-40 viscosity grade delivers reliable protection across a wide temperature range
• Heavy-duty formulation resists thermal breakdown and oxidation
• Advanced additives protect against wear, corrosion, and deposit formation
• Suitable for gasoline marine engines and various powersports applications
• Meets or exceeds industry performance standards for marine engine oils
• 1 quart bottle for convenient oil changes and top-offs

This oil is designed to maintain optimal engine performance while extending service life. The 15W-40 viscosity provides excellent cold-start protection while maintaining proper oil pressure at operating temperatures. Ideal for boaters and marine enthusiasts who demand reliable lubrication for their engines.