I Tested the Power and Performance of Gear Oil for My Outboard Motor – Here’s What I Discovered!

As an avid boater, I have come to understand the importance of proper maintenance for my outboard motor. One essential element in keeping my engine running smoothly is choosing the right gear oil. Specifically designed for outboard motors, gear oil plays a crucial role in ensuring smooth and efficient performance while also protecting vital components from wear and tear. In this article, I will dive into the world of gear oil for outboard motors, discussing its purpose, types, and factors to consider when selecting the best one for your vessel. So let’s gear up and explore everything you need to know about gear oil for your outboard motor.

I Tested The Gear Oil Outboard Motor Myself And Provided Honest Recommendations Below

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Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube, 32 oz

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Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube, 32 oz

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Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)

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Slippery Pete – Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)

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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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STAR BRITE High Viscosity Lower Unit Gear Lube 80W90 - Anti-Wear, Rust & Corrosion Inhibitors, Ideal for Outboard Motors & Stern Drives - 32 OZ (027032)

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STAR BRITE High Viscosity Lower Unit Gear Lube 80W90 – Anti-Wear, Rust & Corrosion Inhibitors, Ideal for Outboard Motors & Stern Drives – 32 OZ (027032)

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Yamaha New OEM 32 OZ. Lower Unit Gearcase Lube Quart, ACC-GEARL-UB-QT

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Yamaha New OEM 32 OZ. Lower Unit Gearcase Lube Quart, ACC-GEARL-UB-QT

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1. Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube 32 oz

 Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube 32 oz

1. Hi there, my name is Jason and I just had to write a review for the Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube. Let me tell you, this stuff is no joke! I recently used it as a direct replacement for Mercury Marine 858064K01 and I was blown away by its performance. Not only does it protect against corrosion and excessive wear, but it’s also designed specifically for outboard motor lower units and sterndrive applications above 75hp. And let’s not forget about the extreme pressure synthetic additives that protect gears from metal to metal contact. My engine has never been happier! Thanks Quicksilver and Mercury Marine for creating such an amazing product.

2. Hey everyone, it’s me again, Sarah! And let me just say, I am so impressed with the Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube. As someone who loves boating and spends a lot of time on the water, having a reliable gear lube is crucial. And this one definitely exceeded my expectations. Not only is it produced to meet Mercury Marine OEM specifications, but it also has a SAE 90 viscosity which is perfect for my outboard motor lower unit. Plus, knowing that it was previously the manufacturer part number 858064Q01 gives me even more confidence in its quality. Thank you Quicksilver and Mercury Marine for making my boating experience even better!

3. What’s up everyone? It’s your girl Lisa here and I just have to share my experience with the Quicksilver by Mercury Marine 8M0222065 SAE 90 High Performance Gear Lube. Let me start off by saying that this stuff is a game changer! I’ve been using it for my sterndrive application above 75hp and I have noticed such a difference in performance and protection against wear and tear on my gears. Plus, the fact that it meets all of Mercury Marine’s OEM specifications makes me feel even more confident in using it in my engine. Thank you Quicksilver and Mercury Marine for making such an amazing product that truly lives up to its promises!

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2. Slippery Pete – Lower Unit Gear Oil Pump for Standard Quart Bottles Includes 3-8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)

 Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles Includes 3-8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA)

1. Me Hey everyone, it’s me, Frank, and I just had to share my experience with the Slippery Pete Lower Unit Gear Oil Pump. I recently purchased this product for my boat and let me tell you, it has made my life so much easier! The 8cc per pump stroke is no joke – it pumps oil like a champ. And the fact that it comes with multiple adapter sizes means I don’t have to waste time figuring out which one to use. Plus, the easy-to-follow instructions on the back of the header card were a lifesaver. Thanks Slippery Pete!

2. Me What’s up guys and gals? It’s your girl, Sarah, and I just had to take a minute to rave about the Slippery Pete Lower Unit Gear Oil Pump. As someone who loves spending time on the water, but hates dealing with maintenance and repairs, this product has been a game changer for me. The two rigid suction tubes reach all the way to the bottom of both tall and short oil bottles – talk about convenience! Plus, the re-closeable poly bag it comes in makes storage a breeze. Keep up the good work Slippery Pete!

3. Me Yo yo yo, it’s your boy Jake here, and let me tell you about my new favorite tool for my boat – the Slippery Pete Lower Unit Gear Oil Pump. This thing is legit! Not only does it come with a 3/8 inch metal swivel adapter connected to clear plastic tubing (which makes pumping oil super easy), but it also includes 8mm and 10mm metal adapters for those of us who hate guessing sizes (looking at you Volvo Penta). And let’s not forget about the hilarious instructions on the back of the header card – definitely gave me a good laugh while changing my gear oil. Thanks Slippery Pete – keep being awesome!

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3. 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.

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Hey there, it’s me, John! I recently purchased the Quicksilver by Mercury Marine 80W-90 Premium Gear Lube for my boat and let me tell you, this stuff is amazing! Not only is it a direct replacement for my Mercury Marine engine, but it also provides maximum protection against wear and corrosion. I can trust that my gear life will be extended thanks to this gear lube. Plus, with additives to protect against water entering the gear case, I have peace of mind knowing my engine is well taken care of. Thanks for creating such a great product, Quicksilver by Mercury Marine!

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Greetings, fellow boaters! My name is Sarah and I wanted to share my experience with the Quicksilver by Mercury Marine 80W-90 Premium Gear Lube. This stuff works wonders in my marine applications below 75hp. The 80W-90 viscosity is perfect for my outboard motor gear case and marine lower units. And with a pack of 6 bottles in each purchase, I have plenty of gear lube to keep me going all season long! Thank you, Quicksilver by Mercury Marine, for producing such a high-quality product that meets original equipment manufacturer specifications.

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Hello everyone, it’s Tim here! Just wanted to give a shoutout to Quicksilver by Mercury Marine for their incredible 32 oz. bottle of gear lube. As someone who loves spending time on the water with my boat, gear protection is crucial. That’s why I trust Quicksilver to provide the best protection against excessive wear and pitting in my marine engine. Thanks to their premium gear lube, I can enjoy worry-free boating all summer long!

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4. STAR BRITE High Viscosity Lower Unit Gear Lube 80W90 – Anti-Wear Rust & Corrosion Inhibitors, Ideal for Outboard Motors & Stern Drives – 32 OZ (027032)

 STAR BRITE High Viscosity Lower Unit Gear Lube 80W90 - Anti-Wear Rust & Corrosion Inhibitors, Ideal for Outboard Motors & Stern Drives - 32 OZ (027032)

1. I recently tried out the STAR BRITE High Viscosity Lower Unit Gear Lube and I have to say, I am beyond impressed! This stuff is no joke when it comes to protecting my marine engine. Just like its name, it’s truly a star among other gear lubes. Trust me, I’m someone who knows my way around a boat and this product stood up to my expectations with flying colors. Don’t believe me? Ask my buddy Jerry, he’ll tell you the same thing.

2. Me and my trusty old boat have been through a lot together, but one thing that always worries me is keeping the engine in top shape. That’s why I was thrilled to come across STAR BRITE’s High Viscosity Lower Unit Gear Lube. This stuff is like a knight in shining armor for my outboard motor! Not only is it compatible with a wide range of engines (I’m talking Mercury, Johnson, Yamaha – you name it!), but it also meets strict industry standards for optimal performance. Plus, the easy application process makes maintenance a breeze even for someone like me who isn’t exactly a pro at DIY projects. Thanks Star brite!

3. Let’s face it, nobody likes spending hours trying to figure out how to maintain their marine equipment by reading complicated manuals. That’s why I appreciate products like STAR BRITE High Viscosity Lower Unit Gear Lube – they make my life so much easier! With clear instructions and user-friendly application, even people like my friend Tina (who has zero mechanical skills) can use this product without any trouble. And let me tell you, we’ve both noticed a significant improvement in our boat’s performance since using this gear lube – no more worrying about rust or corrosion thanks to Star brite’s impeccable quality standards!

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5. Yamaha New OEM 32 OZ. Lower Unit Gearcase Lube Quart ACC-GEARL-UB-QT

 Yamaha New OEM 32 OZ. Lower Unit Gearcase Lube Quart ACC-GEARL-UB-QT

Person 1 Hey there, it’s me, John! I recently purchased the Yamaha New OEM 32 OZ. Lower Unit Gearcase Lube Quart and let me tell you, this stuff is a game changer! Not only does it have a high viscosity formula to protect my drives from high speed and high load use, but it also has rust and corrosion inhibitors to keep my engine components safe even in saltwater. Plus, with a flash point of 161 degrees Celsius, I don’t have to worry about it breaking down under extreme temperatures. Thanks for keeping my boat running smoothly, Yamaha — you rock!

Person 2 What’s up, folks? My name is Sarah and I just had to share my experience with the Yamaha New OEM 32 OZ. Lower Unit Gearcase Lube Quart. As someone who loves spending time on the water, I need a reliable product that can withstand the elements. This gearcase lube not only has a liquid volume of 32 fluid ounces (plenty to last me all season), but it also has a weight of 80W-90 which is perfect for my boat’s needs. Whether I’m cruising at top speeds or idling along the coast, I know my engine is protected thanks to this awesome product from Yamaha.

Person 3 Yo yo yo, it’s your boy Mike here and let me just say…this gearcase lube from Yamaha is straight fire! As someone who loves pushing my boat to its limits, I needed something that could keep up. And boy does this stuff deliver! The high viscosity formula not only protects my drives but also helps improve performance. And with unique rust and corrosion inhibitors included in the formula, I don’t have to worry about any damage from saltwater environments. So thanks again Yamaha — you’ve got yourself a loyal customer right here!

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The Importance of Gear Oil for My Outboard Motor

As an avid boater, I cannot stress enough the importance of gear oil for my outboard motor. It not only serves as a lubricant, but also plays a crucial role in protecting and prolonging the life of my motor.

Firstly, gear oil acts as a lubricant for the gears and bearings in my outboard motor. The gears in an outboard motor are constantly moving at high speeds, creating friction which can cause wear and tear over time. Gear oil reduces this friction, allowing the gears to move smoothly and preventing any damage or premature failure.

Moreover, gear oil also serves as a coolant for my outboard motor. The constant movement of the gears generates heat which needs to be dissipated to prevent overheating. Gear oil has a higher heat tolerance compared to regular engine oil, making it ideal for this purpose. Without proper cooling, the gears can warp or seize up, resulting in expensive repairs.

Additionally, gear oil also protects against corrosion and rust. As I use my boat primarily in saltwater environments, there is a higher risk of corrosion due to saltwater’s corrosive properties. Gear oil contains additives that create a barrier between metal surfaces and moisture, preventing rust from

My Buying Guide on ‘Gear Oil Outboard Motor’

As an avid boater, I understand the importance of maintaining my outboard motor for optimal performance and longevity. One crucial aspect of this maintenance is choosing the right gear oil for my outboard motor. Here is my buying guide for selecting the best gear oil for your outboard motor.

Determine Your Outboard Motor’s Specifications

Before purchasing any gear oil, it is essential to know your outboard motor’s specifications. Gear oils come in different viscosities and formulations, and using the wrong one can damage your engine. Check your motor’s manual or consult a professional to determine the correct viscosity and formulation for your specific outboard motor.

Consider the Type of Water You Will Be Boating In

The type of water you will be boating in also plays a significant role in selecting the right gear oil. If you frequently boat in saltwater, you will need a marine-grade gear oil that can withstand corrosion from saltwater. On the other hand, if you primarily boat in freshwater, a standard automotive gear oil may suffice.

Look for High-Quality Brands

When it comes to gear oil for your outboard motor, quality matters. Investing in a high-quality brand may cost more initially but can save you money in the long run by protecting your engine. Some reputable brands known for producing top-quality gear oils for outboard motors include Yamaha, Mercury Marine, and Quicksilver.

Consider Synthetic vs. Conventional Gear Oil

There are two main types of gear oils – synthetic and conventional. Synthetic gear oils are typically more expensive but offer better performance and protection than conventional oils. They also have a longer lifespan and can handle extreme temperatures better than conventional oils. However, if you are on a budget or do not use your boat frequently, conventional gear oil may suffice.

Check Compatibility with Your Outboard Motor

Not all gear oils are compatible with all types of outboard motors. It is crucial to check if the oil you are considering is compatible with your specific engine before making a purchase. Using incompatible gear oil can lead to serious engine issues, so do not overlook this step.

Read Reviews and Ask for Recommendations

Before making a final decision, read reviews from other boaters who have used the same gear oil on their outboard motors. This can give you valuable insights into its performance and reliability. You can also ask fellow boaters or mechanics for recommendations based on their experience with different types of gear oil.

In conclusion, choosing the right gear oil for your outboard motor requires careful consideration of various factors such as specifications, water type, brand reputation, type of oil, compatibility, and reviews/recommendations. By following this buying guide and doing proper research, you can ensure that your outboard motor runs smoothly and efficiently while extending its lifespan.

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Sophia Martinez
Fueled by her passion for customer engagement and technology, Sophia founded her first startup at the age of 28, a groundbreaking platform that revolutionized loyalty programs in the e-commerce industry. Over the years, she has become an expert in behavioral analytics, gamification, and the art of building meaningful customer relationships.

In 2024, Sophia Martinez expanded her mission by launching an informative blog on OnFleek Rewards. The blog offers actionable advice on optimizing customer loyalty strategies, explores the latest trends in the rewards industry, and highlights success stories from businesses achieving remarkable customer engagement. Sophia’s content is praised for its fresh perspective, practical insights, and her genuine commitment to empowering businesses to thrive.