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4 Stroke Oil

      • Sierra 25W-40 4-Stroke Synthetic Marine Oil - Quart
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        Sierra 25W-40 4-Stroke Synthetic Marine Oil

        $13.21
        $11.49

        Sierra 25W-40 4-Stroke Synthetic Marine Oil Sierra 4-Stroke 25W-40 Engine Oil is blended with premium grade synthetic and mineral based stock combined with superior designed additives formulated for the stress endured by sterndrive and inboard engines...

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      • Sierra 10W30 4-Stroke Conventional Marine Oil - Quart
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        Sierra 10W30 4-Stroke Conventional Marine Oil

        $13.49
        $9.99

        Sierra 10W30 4-Stroke Conventional Marine Oil ENGINE OIL is a highly refined petroleum product formulated with premium base stock and highly refined additives. Specifically formulated to meet or exceed the tough requirements of the Marine 4-Stroke motor...

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      4 Stroke Marine Oil

      A quality 4 stroke marine oil is an integral part of protecting and maintaining your engine. We stock a wide variety of 4 stroke oils including OEM oil like Mercury and Yamalube, as well as aftermarket oil from Sierra and Quicksilver. Additionally, we offer conventional, synthetic, and synthetic blend oils to best suit your application.

      4 Stroke oil lubricates and protects internal engine components from corrosion and wear. Viscosity, corrosion protection, and sludge protection are some of the important features found in premium 4 stroke marine oil.

      Maintain your engine’s performance and reliability with quality 4 stroke marine oil from Wholesale Marine. We offer the lowest prices and same-day shipping on everything you need to maintain your boat’s engine. If you’re unsure which oil is best for your boat, give us a call. Our customer service team is available Monday through Friday, 9AM to 4:30 PM EST at 1-877-388-2628.