Sierra® SAE 30 Full Synthetic Marine Engine Oil. A special blend of synthetic base oil and a balanced additive system that exceeds the FC-W requirements for marine engine oil:
- Recommended for gasoline and diesel inboard and sterndrive engines
- Superior engine protection during startups, operation and storage
- Reduces friction and wear for extended engine life
- Longer lubrication effectiveness than mineral oils
- Reduces oil consumption and improves fuel economy.
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