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      Marine Oil

      • Quicksilver SAE 90 High Performance Gear Lube
        $9.99

        Quicksilver High Performance Gear Lube SAE 90 Quicksilver High Performance Gear Lube is a synthetic blend gear oil that’s specifically designed and tested for marine applications. SAE 90 Gear Lube is manufactured to provide maximum protection for...

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      • Quart of Quicksilver 8M0078619 Conventional 25w-40 Engine Oil
        $12.64
        $10.99

        Quicksilver Conventional 25w-40 Marine Inboard & Sterndrive Engine Oil This superior 24w-40 marine engine oil has been specifically formulated and developed to meet the needs of high-output sterndrive and inboard engines...

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      • Quicksilver 8M0078616 10W-30 4-Stroke Outboard Oil - Quart
        $11.99
        $9.99

        Quicksilver 8M0078616 10W-30 4-Stroke Outboard Oil - Quart Specifically formulated for use with all 4-stroke outboards that require FC-W Certified, SAE 10W-30 oil. Premium-grade base stock and special additives make for a superior-grade oil. Contains...

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      • Quicksilver 2-4-C Marine Lubricant with PTFE
        $12.64
        $10.99

        Quicksilver 2-4-C Marine Lubricant with PTFE Quicksilver 2-4-C Marine Lubricant is a high quality multi-purpose lubricant manufactured to withstand extreme friction in all marine applications. This is an excellent general-use lubricant that can be used...

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      • Quicksilver Synthetic Blend Sterndrive Inboard Oil
        $13.79
        $11.99

        Quicksilver 25W-40 Synthetic Blend Sterndrive Inboard 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 and preventing damages. This Quicksilver...

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      • Sierra High Performance Syn Blend Lower Unit Gear Lube
        $9.99

        High Performance Synthetic Blend Gear Lube by Sierra Synthetic blended marine formulation reduces operating friction for increased performance and protection of gears, bearings and other gearcase components. Recommended for use in high performance...

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      • Sierra Premium Lower Unit Gear Lube
        $6.99

        Premium Lower Unit Gear Lube by Sierra Recommended for all general marine applications requiring a GL-5 class lubricant. Formulated for use in freshwater or saltwater conditions. Reduces friction and protects gears, bearings and other gearcase...

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      • Sierra 25W-40 Synthetic Blend Engine Oil
        $12.64
        $10.99

        Sierra 25W-40 Synthetic Blend Engine 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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      • Johnson/Evinrude 0508298 Triple Guard Marine Grease - 8 oz
        $16.49
        $10.49

        Johnson/Evinrude 0508298 Triple Guard Marine Grease - 8 oz Triple-Guard is a tough grease that stays in place and is unaffected by vibration, saltwater, or cold temperatures. Won't swell seals, packing or O-rings  Compatible with other...

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      • Sierra 30W Synthetic Engine Oil
        $13.21
        $11.49

        Full Synthetic SAE 30 Marine Engine Oil by Sierra Recommended for gasoline/diesel inboard and stern drive engines. A special blend of synthetic base oil and a balanced additive system that exceeds the FC-W requirements for marine engine oil...

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      • Sierra Synthetic Blend 25W-40 Catalyst Engine Oil
        $10.91
        $9.49

        Sierra Synthetic Blend 25W-40 Catalyst-Compatible Marine Engine Oil This Sierra Synthetic Blend Engine Oil meets modern recreational 4-stroke engines with or without emission catalyst systems.  Features: Minimizes corrosion that is formed...

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      • Mercury 2-4-C Marine Lubricant with PTFE
        $12.64
        $10.99

        Mercury 2-4-C Marine Lubricant with PTFE A high quality multi-purpose lubricant to withstand extreme friction in all marine applications. Extremely water-resistant - won't break down when mixed with water PTFE for added friction reduction and...

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      • Johnson-Evinrude XD30 2-Cycle Conventional Oil - Quart
        $8.99

        Johnson Evinrude XD 30 2-Cycle Oil XD30™ – FOR USE IN CARBURETED 2-CYCLE OUTBOARDS. XD30 is formulated for water-cooled 2-cycle outboards and other 2-cycle engines that specify TC-W3, API TC, JASO FB certified oils. This exclusive...

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      • Mercury 25W-40 Conventional 4-Stroke Marine Engine Oil Quart
        $12.64
        $10.99

        Mercury 25W-40 Conventional 4-Stroke Marine Engine Oil Maintain peak engine performance and reliability with Mercury 24W-40 Marine Engine Oil. This oil outperforms automotive oils in marine applications because of its specialized additive package...

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      • Sierra 10W30 4-Stroke Outboard Oil
        $10.91
        $9.49

        10W30 4-Stroke Outboard Oil by Sierra 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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      • Johnson/Evinrude XPS 0779480 Gear Lube 32oz
        $10.34
        $8.99

        Johnson/Evinrude XPSGear Lube Johnson/Evinrude XPS Gear Lube is an exceptional heavy duty gearcase oil. This is a OEM part, not aftermarket. Recommended for use in Honda, Mercury, Suzuki, Yamaha, and Evinrude/Johnson outboards 1973 and up as well...

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      • Sierra Type "C" Lower Unit Gear Lube (New Packaging)
        $15.99
        $11.49

        Sierra Type "C" Lower Unit Gear Lube Formulated for older model outboards and I/O's equipped with electric shift. Reduces friction and protects gears, bearings and other gearcase components. Replaces: OMC (System Matched) Premium Blend Sizes...

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      • Yamalube 10W-30 4 Stroke Engine Oil - Quart -  Front
        $10.91
        $9.49

        Yamalube 4M FourStroke Outboard Oil 10W-30 Yamalube 10W-30 is designed for maintaining viscosity in 4 stroke outboard engines in marine environments. NMMA FC-W certified, this oil features rust inhibitors that help keep you moving smoothly and increase...

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      • Quicksilver Extreme Grease
        $13.21
        $11.49

        Quicksilver Extreme Grease Quicksilver Extreme Grease is a new grease that provides better rust and corrosion protection than the greases it replaces. It also provides better wear protection in high temperatures, high load applications. Extreme grease...

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      • Sierra 25W-40 Catalyst Engine Oil
        $10.91
        $9.49

        Sierra Premium Blend 25W-40 Catalyst-Compatible Marine Engine Oil This Sierra Premium Blend Engine Oil meets modern recreational 4-stroke engines with or without emission catalyst systems. Sierra 25W-40 is approved for all 4-stroke applications...

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      Marine Oil

      In order to keep your marine engine running and avoiding costly repairs, it is important to change out your boat oil during your routine maintenance. Just like your car engine needs oil, your boat engine requires oil. However, marine oil typically has extra additives that help protect the engine from corrosion, moisture, and oxidation that can develop from harsh marine conditions. Wholesale Marine knows how important it is to have high-quality boat oil, which is why they only carry the top brands like Quicksilver, Mercury, and Sierra.

      Marine Oil for All Types Of Engines

      For top engine performance, it is important to change your marine oil annually or after every 100 hours of use. So having quality oil on hand will make your job easier when the time comes. Make sure when you are selecting the right oil, you know what type of engine you have and what type of boat oil is best. There are 2-Stroke and 4-Stroke oils.

      Just as with our automotive counterparts, when shopping for marine oil, you should know that there are conventional and synthetic oils available, and whatever your boat requires, Wholesale Marine stocks both. For high-output outboards and inboards, the Quicksilver 25W-40 is a top choice for conventional marine engine oils. If you're shopping for the popular synthetic oil, Sierra’s 25W-40 Synthetic Blend Boat Oil is an excellent choice. This marine oil’s synthetic blend is formulated with antioxidants, anti-wear, and corrosion protection properties.

      When it is time for your routine maintenance on your boat, be sure to shop at Wholesale Marine. We carry a huge inventory of boat oils and lubricants needed to ensure that your engine remains at its optimal performance level. If you have questions about which marine oil is right for your engine, call our boat experts at 877-388-2628 Monday through Friday from 9:00 AM until 6:00 PM EST. We offer same day, flat rate shipping on most items.