Description
The Sierra 10W-30 FC-W 4-Stroke Marine Oil is formulated with highly refined base stocks and premium additives designed to meet or exceed the demanding requirements of marine 4-stroke engine manufacturers. It delivers excellent anti-wear protection and friction reduction to help support smooth, efficient engine performance under a variety of operating conditions. Engineered for marine environments, it provides strong corrosion protection while helping reduce sludge buildup to keep engines cleaner and operating more efficiently. Its low-temperature viscosity supports improved cold starts and reliable lubrication during startup. Meeting and exceeding API SJ, CF-2, CH-4 standards and NMMA FC-W certification, it offers dependable protection for marine engines.
Features
- Formulated with highly refined base stocks and premium additive system
- Provides excellent anti-wear protection and reduces engine friction
- Helps protect against corrosion and reduce sludge buildup
- Low-temperature viscosity supports improved cold starting performance
- NMMA FC-W certified and meets or exceeds API SJ, CF-2, and CH-4 standards
- Reduces friction
- Formulated to offer maximum corrosion protection
- Reduces sludge keeping the engine cleaner for better efficiency
- Low temperature viscosity offers better cold starting
- Meets and exceeds quality performance API SJ, CF-2, CH-4, NMMA FC-W Certified
- Premium quality for longer life






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