Sierra 10W-30 4-Stroke Synthetic Marine Oil Sierra 10W-30 Synthetic Blend Engine Oil is formulated specifically for 4-stroke outboard and sterndrive engine technology. The special blend of synthetic...
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Add to CartSierra's SAE 30 4-stroke marine engine oil is specially formulated with premium synthetic oil and a blend of additives that exceeds FC-W certification requirements. This engine oil is designed for use in both gasoline and diesel inboards and sterndrive engines. From startup to storage, this high performance oil provides superior protection through every phase of operation.
Marine engine oil helps reduce friction and wear to help extend your engine's life by maintaining longer lasting lubrication.
It varies model to model, check out our Engine Oil Capacity Guide for more information and capacity charts!
California Residents:
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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