4 Stroke Outboard Synthetic Oil 10W30 - 18-9690-3 - Sierra
Formulated specifically for 4-stroke outboard and sterndrive engine technology. A special blend of synthetic base oil and a balanced additive system that exceeds the FC-W requirements for marine engine oils. Recommended for use in both outboard and sterdrive applications. Offers faster lubrication at start up in low temperatures, excellent protection at high temperatures, and greater resistance to oxidation for lower oil consumption.