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Add to CartProtect your 4-stroke outboard with Quicksilver 10W-30 marine oil, formulated to meet the demands of high-RPM, high-load marine use. FC-W certified and made from premium base stocks, it delivers excellent protection against corrosion, wear, and oxidation. The 10W-30 viscosity ensures consistent lubrication across operating temperatures, while marine-specific additives keep critical parts protected under pressure. It’s an ideal choice for maintaining performance, especially in saltwater or high-heat conditions. For smooth, long-lasting engine operation, Quicksilver is the trusted name on the water.
Need to know how much oil you need? Check out our Mercury and MerCruiser oil capacity guides for more information!
Meets API service requirements for SJ, CF-2, CH-4.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
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