Marine gear oil

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Marine gear oil

Mercury Marine gear lube outperforms automotive gear oil in marine applications because of its specialized additive package designed for marine gear cases. Continued use of this gear case lubricant will: Provide maximum protection against excessive wear - even in the presence of water Prevent corrosion and pitting Help extend gear life Mercury Premium SAE 80W90 Gear Lube is recommended for lower units for outboards below 75 horsepower.

Available container sizes: 10oz Tube, Quart, 2. Engineered to provide maximum protection for sterndrive and outboard lower units. Exclusive formula is engineered to provide extended gear life in extreme conditions including high-speed and high-horsepower applications. Extensively tested to provide excellent protection against corrosion and excessive wear.

Specifically formulated to help prevent failures due to water entering the gear housing. Extreme pressure synthetic additives protect gears from metal to metal contact. Since no industry-wide standards exist concerning marine gear oils, it is essential to use products such as Mercury High-Performance Gear Lube which has been specifically designed and tested for marine applications.

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Provides warranty protection for all Mercury MerCruiser sterndrive and Mercury, Mariner and Force outboard lower units. You can order all available Mercury literature online or through any authorized Mercury dealer.

Please have your outboard or sterndrive serial number before placing the order. Purchase a Manual. This website uses cookies to enhance and improve your browsing experience. By closing this message, I acknowledge and accept the Terms of Use, the Privacy Policy and the Cookie Policy, and agree that my information may be transferred to the U.

Sign Up. Precision Lubricants Gear Lube Get a grip on a slippery situation. Find a dealer. Home Invest in even coverage Gear Lube. Sign up to receive the latest tips, promotions and news from Mercury.While both automotive and marine oil can lubricate an engine, only some oils have gained endorsement by the National Marine Manufacturers Association.

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This endorsement assures boat operators the oil they select is up to the rigors of marine performance. Oil lubricates the metal parts of an engine, creating a grease-wall between the engine's moving metal parts. This reduces friction, saving wear on the engine, as well as increasing energy efficiency. It also removes the chemical by-products of internal combustion, transferring them to the oil from the engine. This stands true for automotive oil and marine oil. The NMMA has endorsed marine lubricants that meet their testing guidelines.

Marine oils bear the NMMA endorsement, while motor oils do not. The primary difference between motor oil and marine oil is the NMMA endorsement or lack thereof. Endorsed marine oil has been put through specific tests to determine the appropriateness of the oil for marine use.

These tests include viscosity, lubrication, foaming and rust tests. In addition, marine oil must pass a hour operational test to gain any of the NMMA trademarks.

This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Automotive Oil Vs. Marine Oil by Michael Elkins. Difference The primary difference between motor oil and marine oil is the NMMA endorsement or lack thereof. About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.Conversations about lower unit lubrication don't typically generate much interest around the launch ramp.

marine gear oil

That is until someone gets water in their lower unit and loses a gear case. It happens more than you may realize because all of the power and torque of your engine, turning at thousands of rpms, is concentrated on two small rotating metal surfaces. Here's what you need to know about outboard lower units and why choosing the right lubricant is so critical.

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Modern outboard lower units use spiral-bevel gears designed with a curvature in their teeth. This design distributes the load over several teeth to increase the load capacity of the gear set, providing smoother, quieter operation. The downside of this design is the increased lubrication demand due to the sliding along the curved teeth.

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The sliding action increases friction and heat. These extremely demanding conditions require specific lubrication.

marine gear oil

Spiral-bevel gears require extreme pressure additives known in the industry simply as EP additives to handle the strain of increased shock load and high RPMs. It's important that a lubricant has adequate film strength to prevent the metal-to-metal contact that causes heat and wear.

The higher the film strength, the less metal to metal contact. Performance lubricant manufacturer Royal Purple has gained a reputation for developing lubricants that possess very high film strength as exhibited in the chart comparing the results of the leading synthetic gear oil and conventional mineral-oil-based gear oil with Royal Purple's 'Max-Gear' gear oil.

Important Note: Different gear oils cannot be combined. If you elect to switch gear oils you should make sure all of the old gear oil is completely drained out before adding the new gear oil.

Each gear oil brand formula is unique; mixing two brands will result in a lubricant that is inferior to either of the two that you started with. Most outboard manufacturers recommend changing gear oil annually or every hours whichever comes first.

Some recommend shorter intervals when in salt water.

marine gear oil

Regardless of the change interval, any accidental introduction of water into the system demands immediate attention. Water in an outboard's lower unit often goes undetected until it's too late and expensive repairs are needed. One of the most common causes, particularly among anglers, is discarded monofilament line which gets wrapped around the prop shaft and damages the seals. When water and oil are violently mixed, the emulsified mixture dramatically reduces the gear oil's ability to do its job.

A lubricant's ability to rapidly separate from water indicates how well it will continue to lubricate if water is introduced to the system. Regardless of how well and quickly a lubricant separates from water, it should be changed immediately if water enters the system.Updated for Find a substitute for marine oil products from over 70 brands.

Quicksilver High Performance Gear Lube

We have examined the products from over 70 oil brands and have listed a first-rate substitute that will dramatically improve the performance and extend the life of your boat or personal watercraft engine.

The reason being is that either of these products are a viable upgrade over most ordinary outboard two-cycle engine oils.

If you have questions, feel free to contact us with the form on your right or call us at Low-smoke, great performance and low aquatic toxicity rounds out an unbeatable package.

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Suitable for oil injection or premix. It can also be used in your snowmobile in the winter. This product is a serious synthetic challenger that fights wear and performs like a champ.

Can be used in oil injected engines or premix at Upgrade the performance of your outboard engine with dramatically reduced smoke and odor, improved throttle response and exceptional wear control. Many personal watercraft such some Sea-Doo models and 2-stroke Yamaha WaveRunners require a low-ash engine oil rather than a TC-W3 oil for water-cooled outboards.

Provides synthetic wear control and outstanding anti-rust protection in marine engines suggesting a 5W, SAE 30 or 10W marine engine oil. Suitable for outboard, inboard and stern drive motors. Provides long service life and long engine life in severe service conditions of marine diesel engines. Great for outboard lower units, stern drives, v-dries and ZF Marine Transmissions. Oil Depot Blog.

Marc Roden Independent Dealer info oildepot. Follow us on Facebook.I used this product several years without any problems. It performs as well as more expensive lubricants. Here at Walmart. Your email address will never be sold or distributed to a third party for any reason. Due to high volume, we can't respond to individual comments. Your feedback helps us make Walmart shopping better for millions of customers. Recent searches Clear All. Enter Location.

Update location. Learn more. Report incorrect product information. Super Tech. Walmart Free NextDay delivery. Free 2-day delivery. Add to list. Add to registry. It is essentially formulated for the high-performance needs of all stern drives and outboard motors. Made with anti-wear additives and corrosion inhibitors, it protects gear and bearing surfaces to reduce wear and tear. It will give your boat GL-5 performance for a smoother ride.

It will allow the lower unit of your boat's motor to perform as well as the upper unit. It comes in an easy-to-pour bottle with a reclosable cap for safe storage. This synthetic gear lube is the ideal choice for all boat owners. About This Item. We aim to show you accurate product information.

Manufacturers, suppliers and others provide what you see here, and we have not verified it. See our disclaimer. Super Tech 80W Marine Gear Lube, 1 Qt Formulated for the high performance requirements of all stern drives and outboard motor lower unit Contains advanced additive system, which includes anti-wear and anti-friction agents with oxidation and corrosion inhibitors Provides high resistance to thermal breakdown Helps prevent foaming, rust, and corrosion Smooths and quiets operation For use where API GL-5 is specified.

Packaging requirements for returns. Due to federal restrictions, this item must be returned in its original package, or with secure ORM-D packaging obtained from the post office. We advise keeping the original packaging for at least 90 days.Studies have shown that Quicksilver High Performance synthetic blend gear lube outperforms automotive gear oil in marine applications.

Continued use of this gear case lubricant will:. In fact, all new Mercury outboards and Mercruiser Sterndrives have been pretreated with Quicksilver gear lube. Offered in 8oz tube or 32oz bottle. With 32 oz bottle it is recommended that use gear lube pump for simplified application. Quart size application is perfect for most marine drives Attaches to quart gear lube This gasket is used in The gear lube Formulated for use in freshwater or saltwater conditions.

Developed for the rigors of the 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 Oops, something went wrong.

Please try again. SKU: Q Availability: In Stock - Ships Today. List Price:. You save. Current Stock:. Size: Required 8 oz Quart. Decrease Quantity: Increase Quantity:.

Continued use of this gear case lubricant will: Provide maximum protection for sterndrive and outboard lower units. Provide Maximum protection against excessive wear even in harsh marine environments. Prevent corrosion and pitting on major engine components. Extend gear service life. Features: Recommended for use in extreme conditions including high-speed and high-horsepower applications to extend gear service life.

Extensively tested and shown to provide superior protection against corrosion and excessive gear wear. Formula helps prevent failures due to water infiltration in the gear housing. Specialized synthetic additives protect gears from abrasive metal-on-metal contact.

Marine gear oils are not standardized, therefore it is recommended to use products such as Mercury High-Performance Gear Lube, specifically designed and tested for marine applications. Provides warranty protection for all Mercury MerCruiser sterndrive and Mercury, Mariner and Force outboard lower units. Quick view. Sierra Gear Lube Pump.While it's ideal to change lower unit fluids in the fall, many people choose to do it in the spring.

That's okay, as long as you change it, and as long as you use the proper gear lube.

Oil & Gear Lube Capacity Charts

Why should I make a special trip to the store to buy marine gear lube? Can't I use any old gear lube?

marine gear oil

Marine gear lube, unlike automotive gear lube, is formulated to emulsify water. This serves two purposes:. Lower units contain hypoid gears think ring and pinion, like a car differential so they demand extreme pressure additives. The marine gear oil you choose will depend on the size of your marine engine. A small outboard will use a "simpler" formula than a larger, high-performance outboard that has much bigger gears and sees much higher loads.

So, can you use any old gear lube in your marine lower unit? If you want the best protection possible, and want your lower unit to last as long as your boat, then the answer is no.

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Consult your engine's manual and look for the proper marine gear lube for your application. Interested in a marine gear lube? Contact us today for pricing and availability. Tags: Product News. Marine Gear Lube vs. This serves two purposes: It provides consistent lubrication, keeping water away from moving parts It keeps the lower unit from freezing yours didn't freeze last winter, did it?

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