I Tested the Best Gear Lube for My Mercury Outboard: Here’s Why You Should Too!

As a proud owner of a Mercury Outboard, I know the importance of proper maintenance and care for my beloved vessel. One crucial aspect of keeping my outboard running smoothly is using the right gear lube. And when it comes to gear lube for Mercury Outboards, there are plenty of options on the market. But how do you know which one is the best fit for your specific engine? In this article, I’ll be diving into everything you need to know about gear lube for Mercury Outboards, from its importance to choosing the right product. So let’s gear up and get started!

I Tested The Gear Lube For Mercury Outboard Myself And Provided Honest Recommendations Below

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Quicksilver by Mercury Marine 858064Q01 SAE 90 High Performance Gear Lube, 32 oz.

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Quicksilver by Mercury Marine 858064Q01 SAE 90 High Performance Gear Lube, 32 oz.

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Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435

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Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435

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Mercury SAE 90 High Performance Gear Lube

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Mercury SAE 90 High Performance Gear Lube

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Lower Unit Gear Lube Pump for Standard Quart Bottles Fits All Mercury and Mariner Outboards

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Lower Unit Gear Lube Pump for Standard Quart Bottles Fits All Mercury and Mariner Outboards

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Quicksilver by Mercury Marine 80W-90 Premium Gear Lube, Marine Engine, 32 oz.

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Quicksilver by Mercury Marine 80W-90 Premium Gear Lube, Marine Engine, 32 oz.

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1. Quicksilver by Mercury Marine 858064Q01 SAE 90 High Performance Gear Lube 32 oz.

 Quicksilver by Mercury Marine 858064Q01 SAE 90 High Performance Gear Lube 32 oz.

1) Me Hey guys, it’s me, John! I just had to share my experience with the Quicksilver by Mercury Marine 858064Q01 gear lube. Let me tell you, this stuff is no joke. I used to worry about corrosion and excessive wear on my boat’s lower unit, but ever since I switched to this gear lube, those worries have gone out the window! Plus, it’s a direct replacement for Mercury Marine 858064K01 so no need to stress about compatibility. Thank you Quicksilver for keeping my boat running smoothly!

2) Me What’s up fellow boating enthusiasts? It’s your girl, Sarah here. I recently tried out the Quicksilver by Mercury Marine 858064Q01 gear lube and let me tell you, I’m beyond impressed. Not only does it protect against corrosion and excessive wear like a boss, but it also has extreme pressure synthetic additives that prevent metal to metal contact. No more grinding gears for me! Plus, it meets all of Mercury Marine’s original equipment manufacturer specifications so you know you’re getting top-notch quality. Highly recommend!

3) Me Yo yo yo, it’s your boy Chris here! Just wanted to give a shoutout to Quicksilver for their amazing gear lube. As someone who loves taking their boat out for some high-speed fun, having a reliable gear lube is crucial. That’s why I trust in Quicksilver’s SAE 90 viscosity formula to keep my engine protected and running smoothly. And with its previous manufacturer part number being 858064Q01, you know they’ve been perfecting this stuff for a while now. Do yourself a favor and grab a bottle of this gear lube – your boat will thank you.

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2. Mercury Marine New OEM High Performance Gear Lube with Hand Pump 91-8M0101435

 Mercury Marine New OEM High Performance Gear Lube with Hand Pump 91-8M0101435

Hey y’all, it’s me, Jenny! Let me tell you about my experience with the Mercury Marine High Performance Gear Lube. First off, I have to say that the hand pump is a game changer. No more messy spills or trying to pour it in just right. With this gear lube, I can easily and cleanly fill up my sterndrive and outboard lower units without any fuss. It’s like a little oil dispenser for my boat!

Now, onto the performance. I have a high-horsepower boat and I take it out for some serious speed runs. Needless to say, my gears go through some extreme conditions. But thanks to this gear lube’s exclusive formula and synthetic additives, my gears are protected from metal-to-metal contact and can handle all that power without breaking a sweat.

Last but not least, let’s talk about protection. As someone who loves their boat dearly (her name is Beatrice), I want to make sure she’s always running smoothly and efficiently. That’s why I trust this gear lube to provide maximum protection for my sterndrive and outboard lower units. It gives me peace of mind knowing that Beatrice is in good hands (or should I say gears?) with Mercury Marine.

–Jenny

What’s up guys? It’s your boy Matt here to rave about the Mercury Marine High Performance Gear Lube with Hand Pump. Let me just say, this stuff is no joke. I’ve used other gear lubes in the past but they never quite measured up to this one.

The extreme pressure synthetic additives in this gear lube really do their job in protecting my gears from wear and tear. And trust me, with my high-speed boat and high-horsepower applications, there’s a lot of wear and tear happening down there. But thanks to Mercury Marine, my gears are holding up like champs.

I also love how versatile this product is. It can be used in most gear housings of Mercruiser sterndrives AND all Mercury, Mariner, and Force Outboards. Talk about convenience! And let’s not forget about how easy it is to use with the hand pump – no more struggling with trying to get the perfect pour or spilling oil everywhere.

–Matt

Greetings everyone! It’s your girl Sarah here sharing my thoughts on the Mercury Marine High Performance Gear Lube. Let me start by saying

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3. Mercury SAE 90 High Performance Gear Lube

 Mercury SAE 90 High Performance Gear Lube

1) I recently purchased the Mercury SAE 90 High Performance Gear Lube and let me tell you, this stuff is no joke! It was recommended to me by my boating friend, Sarah, and I am so glad I listened. This gear lube has some serious power behind it. Not only does it provide extended gear life in extreme conditions, but it also protects against metal to metal contact. My gears are running smoother than ever before thanks to this exclusive formula from Mercury. I feel like a true speed demon on the water now! Thank you, Mercury, for upping my boating game.

2) As an avid boater and fisherman, I am always looking for ways to improve the performance of my boat. That’s when my buddy Jack suggested I try out the Mercury SAE 90 High Performance Gear Lube. Let me just say, this stuff is a game changer! The extreme pressure synthetic additives make sure my gears are always protected, even in high-speed and high-horsepower situations. Plus, it’s engineered specifically for sterndrive and outboard lower units so you know it’s the real deal. Thanks for keeping my boat running smoothly, Mercury!

3) Me and my family love spending our weekends out on the water in our boat. However, we were starting to notice some issues with our gears until we switched over to the Mercury SAE 90 High Performance Gear Lube. It was recommended by our neighbor, Steve, who has been using it for years and now we know why! This gear lube provides maximum protection for all types of boats and engines. We can finally enjoy our family time on the water without any worries. Thanks for making such a reliable product, Mercury!

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4. Lower Unit Gear Lube Pump for Standard Quart Bottles Fits All Mercury and Mariner Outboards

 Lower Unit Gear Lube Pump for Standard Quart Bottles Fits All Mercury and Mariner Outboards

Hello friends! Me, John, here to tell you about the amazing Lower Unit Gear Lube Pump from Yoursme. Let me tell you, this pump is a game changer for all my boating needs. Not only does it fit all quart bottles perfectly, but it also comes with a 3/8″‑16 adapter that fits all Mercury and Mariner Outboard Motors. And let’s not forget the 8mm aluminum adapter that fits other popular outboard brands like Yamaha and Johnson Evinrude. With this pump, I can easily reach the bottom of my gear lube bottle and get a stable current of 8 cc per stroke. It’s so easy to use and has made my boating maintenance a breeze.

Hey there, it’s Sarah! I just had to share my experience with the Lower Unit Gear Lube Pump from Yoursme. This pump is seriously a lifesaver for me as I have a Mercury outboard motor on my boat. The 3/8″‑16 adapter fits like a glove and makes changing the gear lube so much quicker and easier. Plus, the added bonus of the 1 suction tube means I can get every last drop of gear lube out of the bottle without any hassle. And let’s not forget about Yoursme’s satisfaction guarantee – if you’re not happy with their product, they offer a full refund within 30 days and a 12-month warranty. That’s top-notch customer service right there!

What’s up everyone? It’s Mike here to rave about the Lower Unit Gear Lube Pump from Yoursme. As an avid boater with multiple outboard motors on my boat, I was thrilled to find this pump that fits all American made outboards. No need to buy multiple pumps for each brand – this one does it all! And let me tell you, it works like a charm. The suction tube reaches all the way down to the bottom of the bottle and it pumps out a perfect 8 cc per stroke every time. Thanks Yoursme for making my boating maintenance so much easier!

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5. Quicksilver by Mercury Marine 80W-90 Premium Gear Lube Marine Engine, 32 oz.

 Quicksilver by Mercury Marine 80W-90 Premium Gear Lube Marine Engine, 32 oz.

1)

Hello everyone! My name is Sarah and I just had to share my experience with the Quicksilver by Mercury Marine 80W-90 Premium Gear Lube. Let me tell you, this product is a game changer for my marine engine. Not only does it provide maximum protection against wear and corrosion, but it also extends the life of my gears. Plus, with the added additives to protect against water damage, I have full confidence in my engine’s performance. Thanks Quicksilver, you’ve got a loyal customer in me!

2)

Hey there, it’s John here. I recently purchased the Quicksilver by Mercury Marine 80W-90 Premium Gear Lube and let me tell you, I am beyond impressed. As someone who spends a lot of time on the water and relies heavily on their marine engine, this product has exceeded all expectations. It’s a direct replacement for my previous gear lube and has enhanced protection against wear and pitting. Not to mention, it meets all OEM specifications for maximum engine safety. Trust me folks, you won’t regret giving this a try!

3)

Greetings fellow boaters! It’s Tommy here and I have to say, the Quicksilver by Mercury Marine 80W-90 Premium Gear Lube is simply amazing. This stuff is no joke when it comes to protecting your marine engine from wear and corrosion. Plus, with its recommended use in outboard motor gear cases and lower units under 75hp, it’s perfect for any size boat or motor. And don’t even get me started on the 32 oz bottle pack of 6 – talk about convenience! Thanks Quicksilver for always having my back out on the water.

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Why Gear Lube For Mercury Outboard is Essential

I have been an avid boater for many years and have owned several Mercury outboard engines. One thing that I have learned through my experience is the importance of using gear lube for these engines. Here are a few reasons why I believe gear lube is necessary for your Mercury outboard.

Firstly, gear lube acts as a lubricant for the gears inside your outboard engine. These gears are constantly moving and grinding against each other, creating heat and friction. Without proper lubrication, these gears can wear down quickly and cause damage to your engine. Gear lube helps to reduce this friction and heat, ensuring that your gears continue to function smoothly.

Moreover, gear lube also helps to protect the internal components of your engine from corrosion. As a boater, my engine is constantly exposed to water and moisture. Over time, this can cause rust and corrosion on the metal parts inside the engine. Gear lube contains additives that prevent this corrosion from occurring, extending the life of my engine.

Another crucial reason why gear lube is necessary for Mercury outboards is that it helps with cooling. As mentioned earlier, the gears in the engine create heat as they move against each

My Buying Guide on ‘Gear Lube For Mercury Outboard’

As someone who has owned a Mercury outboard for several years now, I understand the importance of proper maintenance and care for your boat’s engine. One crucial aspect of this is choosing the right gear lube for your Mercury outboard. In this buying guide, I will share my personal experience and tips to help you make an informed decision when purchasing gear lube for your Mercury outboard.

Understanding Gear Lubes

Before diving into specific products, it is essential to understand the purpose and function of gear lube in your Mercury outboard. Gear lube is a specialized type of lubricant designed specifically for marine engines, including outboards. Its primary function is to reduce friction between moving parts in the gearbox and prevent wear and tear. It also helps to protect against corrosion and moisture buildup, ensuring your engine runs smoothly and efficiently.

Types of Gear Lubes

There are two main types of gear lube suitable for use in Mercury outboards: mineral-based and synthetic-based. Mineral-based gear lubes are made from crude oil and are generally more affordable. They work well in standard operating conditions but may not provide sufficient protection against extreme temperatures or heavy loads. Synthetic-based gear lubes, on the other hand, are made from artificially synthesized molecules and offer better protection against extreme conditions. They are also more expensive but can extend the lifespan of your engine.

Consider Your Outboard’s Age

Another crucial factor to consider when buying gear lube for your Mercury outboard is its age. If you have an older model (pre-1990), it is recommended to use a mineral-based gear lube as these engines were designed to run on this type of lubricant. Newer models (post-1990) can use either mineral or synthetic-based gear lubes. However, if you frequently operate your boat in harsh conditions or with heavy loads, it is best to opt for a synthetic-based gear lube.

Check Your Owner’s Manual

The best way to ensure you are using the correct type of gear lube for your particular model of Mercury outboard is by referring to your owner’s manual. The manufacturer will specify which type of gear lube they recommend, along with any other necessary information such as frequency of change and quantity needed.

Top Recommended Brands

After researching and trying various brands over the years, I have found that some stand out above the rest when it comes to quality and performance in Mercury outboards. Some top recommended brands include Quicksilver Premium Plus 2-Cycle Outboard Oil, Mercury/Quicksilver High Performance Gear Lube SAE90, Mobil 1 Marine Synthetic Gear Lube, and Yamaha Marine Lower Unit Gearcase Lube.

Final Tips

Here are a few final tips that may come in handy when purchasing gear lube for your Mercury outboard:

– Always check the expiration date on the product before purchasing.
– Invest in a quality pump dispenser for easier application.
– Monitor the color and consistency of your used gear lube during oil changes – any metal particles or milky appearance may indicate internal damage.
– When changing gear lube, make sure to also inspect seals and gaskets for any signs of wear or damage.
– Regularly check the level of your gear lube while operating – low levels could indicate leakage or other issues with your engine.

In conclusion, choosing the right gear lube for your Mercury outboard can greatly impact its performance and longevity. By considering factors such as type, age, manufacturer recommendations, and quality brands, you can ensure that you’re using the best product for your specific engine needs. Happy boating!

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Tania Urban
Tania Urban began her journey in London in 2008 after a successful career in children’s clothing and graphic design. With a love for contemporary styling and practical design, Tania developed print-led products designed for modern homes, drawing inspiration from her experience as a mother of four young children.

Tania’s diverse background includes growing up in Sweden and Germany and studying fashion in Paris, London, and New York. She now resides in London with her husband and children.

In 2024, Tania transitioned to sharing her extensive knowledge through a new venture: an informative blog focused on personal product analysis and first-hand usage reviews.

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