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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.
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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Quicksilver 92-8M0142135 Oil Syn 10W-30 Quicksilver 8M0142135 10W-30 4-Stroke Synthetic Marine Engine Oil is formulated for use in all 4-stroke marine engines, including outboards up to 150HP, 3.4L...
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Quicksilver 92-8M0142146 10W-30 Synthetic Marine Oil - 1 Gallon Quicksilver 10W-30 4-Stroke Marine Engine Oil helps reduce friction and protect internal engine components in outboard and sterndrive...
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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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Yamalube 10W-30 4-Stroke Conventional Marine Oil Protect your marine engine with Yamalube 10W-30 4-Stroke Conventional Marine Oil, specifically engineered for outboard engines in demanding marine...
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Mercury-Mercruiser 10W-30 4-Stroke Synthetic Marine Oil The Mercury-Mercruiser 10W-30 4-Stroke Outboard Oil is formulated for engines that require FC-W Certified, SAE 10W-30 oil. Help maintain your...
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Sierra 10W-30 4-Stroke Conventional Catalyst Marine Oil Sierra 10W-30 4 Stroke Catalyst Engine oil is designed for modern 4-stroke recreational engines with or without emission catalyst systems...
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Johnson-Evinrude 4-Stroke 10W-30 Premium Mineral Marine Oil This Premium mineral blend marine oil by BRP is formulated with premium anti-corrosion additives. This oil provides your Johnson-Evinrude...
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Quicksilver 25W-40 4-Stroke Synthetic Marine Oil Maintaining your engine's health is a vital part of engine maintenance, the synthetic blend by Quicksilver is a great option for reducing friction...
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Mercury 8M0184390 20W40 4-Stroke Marine Engine Oil Genuine OEM Mercury-Mercruiser part. This Mercury 20W-40 blend 4-stroke engine oil features additives specifically designed for use in marine...
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