Sierra 118-9400-2 25W-40 Marine 4-Stroke Engine Oil - Quart

Sierra 118-9400-2 (also known as 18-9400-2) is a premium 25W-40 marine engine oil specifically formulated for stern drive and inboard 4-stroke engines. Designed for the harsh marine environment, this oil outperforms standard automotive engine oils by providing superior protection against the high loads and running stresses that marine engines experience.

Key Features:

• Excellent detergency, anti-oxidants, anti-wear, and corrosion protection
• Reduces wear to internal engine components
• Protects internal parts from corrosion in marine environments
• Keeps pistons cleaner and prevents ring sticking
• Excellent low temperature operating properties
• Meets or exceeds API SJ, CF-4, and CH-4 quality performance standards
• NMMA FC-W certified for marine use
• Recommended for Mercruiser, OMC, and Volvo Penta engines

Each bottle contains one quart (32 ounces) of premium blend marine engine oil, providing the lubrication and corrosion resistance your stern drive or inboard engine needs for optimal performance and longevity.