Are you trying to find gear oils among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling gear oils on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 28 hours of research and did 18 gear oils tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best gear oils you can buy today
- Direct replacement for Mercury Marine 858064K01
- Lower unit gear oil formulated to protect against corrosion and excessive wear
- Designed for outboard motor lower unit and sterndrive applications above 75hp
- Extreme pressure synthetic additives protect gears from metal to metal contact
- SAE 90 viscosity
- Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your engine
- Manufacturer part number 8M0222065
- Previous manufacturer part number 858064Q01
- Protects Against Severe Temperatures To Help Extend Service Life
- Formulated With Extreme-Pressure Additives To Minimize Gear Wear From Shock Loads
- Helps Protect Against Gear Wear From Scuffing, Scouring, Corrosion And Pitting
- Recommended For Conventional Hypoid Differentials And Non-Synchronized Manual Transmissions In Passenger Cars, Light Trucks, Sport Utility Vehicles, Vans And Heavy-Duty Trucks Where An Api-Gl5 Or Gl-4 Fluid Is Specified
- Contains extraordinary anti-wear and lubricity agents, ensuring exceptional protection against wear and reducing drag
- Helps to control heat
- Incorporates Lucas cutting-edge additive technology derived from top-rated Lucas Heavy Duty Oil Stabilizer, the number one supplemental oil in the heavy-duty industry
- Available in 1 quart and 1 gallon bottle sizes
- Contains extraordinary anti-wear and lubricity agents, ensuring exceptional protection against wear and reducing drag
- Helps to control heat
- Incorporates Lucas cutting-edge additive technology derived from top-rated Lucas Heavy Duty Oil Stabilizer, the number one supplemental oil in the heavy-duty industry
- Available in 1 quart and 1 gallon bottle sizes
- Mobil 1 Synthetic Gear Lube LS is a supreme performance, synthetic, multipurpose, automotive gear lubricant
- Meet or exceed the highest level of performance requirements of many modern passenger vehicles – including limited slip applications
- Helps protect against thermal and oxidative degradation, wear and corrosion, and viscosity loss associated with premature shearing
- Promotes outstanding power transfer performance - even in some of the most severe driving conditions
- Sold as 6 pack
- Formulated to maintain excellent low temperature fluid protection
- Helps provide outstanding thermal stability for cleanliness and longer service life
- Contains special additives to assist in protecting gear teeth from rust and corrosion and reduce chattering in limited-slip differentials
- Recommended for conventional and limited slip differentials and non-synchronized manual transmissions where API GL-5 or API GL-4 fluid is specificed
- Fit Type: Vehicle Specific
- Package Dimensions: 31.75 H x 15.24 L x 15.24 W (centimeters)
- Country of Origin : United States
- Package Weight: 3.447 kilograms
- Contains “climbing additives” that ensure total lubrication
- Fortified with anti-wear and lubricity agents that combat wear and drag
- Designed for hypoid gears and power dividers
- Non-foaming
- Can be used in limited slip differentials
- Resists breakdown when in contact with water
- Cold temperature protection down to -12 C (10.4F)
- Exceeds service level API GL-5, API MT-1, SAE J2360, Mack GO-J, PG-2 Limited Slip
- Direct replacement for Mercury Marine 858058K01
- Provides maximum protection against excessive wear, corrosion and pitting for extended gear life in marine applications
- Contains additives to protect gears if water enters the gear case or lower unit
- Recommended for use in outboard motor gear cases and marine lower units in applications below 75hp
- 80W-90 viscosity
- 32 oz. bottle (pack of 6)
- Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your engine
- Mobil 1 Synthetic Gear Lube Ls 75W-90 Mobil 1 Synthetic Gear Lube Ls 75W-90 Is A Supreme Performance, Synthetic, Multi-Purpose, Sae 75W-90 Automotive Gear Lubricant Designed To Meet The Highest Level Of Performance Requirements Of Modern Passenger Vehicles In All Types Of Operating Conditions, Including Limited Slip Applications, As Well As Delivering Outstanding Power Transfer Performance
- Compared To Conventional Hypoid Gear Lubricants, Mobil 1 Synthetic Gear Lube Ls 75W-90 Performs Exceptionally Well Over A Wide Range Of Temperatures
- Through Creativity, Productivity And Innovation - This Brand Continues To Develop The Finest Automotive Accessories
- Model Number : 104361-UNIT
- Fit type: Vehicle Specific
- Package Dimensions: 30.48 H x 16.51 L x 16.51 W (centimetres)
- Country of Origin : China
- Package Weight: 3.447 kilograms
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- Fit type: Vehicle Specific
- Package Dimensions: 31.0 H x 15.0 L x 15.0 W (centimeters)
- Country of Origin : China
- Package Weight: 7.892 pounds
- Specifically designed for the lubrication and service of model year 2007 and newer manual transmissions and transfer cases
- Product already contains a limited slip friction modifier
- No need to use a top treat additive
- Fit type: Vehicle Specific
- Affordable solutions
- Replaces OEM number: Lucas Oil: 10047
- Excellent for use in limited-slip differentials
- Packaging May Vary
- LONG TERM PROTECTION - Ideal for all engines over 100 hp that require 80w 90w oil - provides exceptional long-term protection against rust and corrosion, extending your engine's lifespan
- SUPERIOR PERFORMANCE - High viscosity synthetic blend 80W-90 gear oil, meets all specs for API GL-5, API MT-1, SAE J2360, and Mack GO-J
- EXTREME PRESSURE ADDITIVES - Special additives ensure great thermal stability and anti-wear protection, even under high temperature conditions
- EASY INSTALLATION - Our gear oil comes with a detailed guide for flushing and filling; STAR BRITE offers a complete line of Lower Unit Quart Pumps, Lube Tubes, and Adaptors for hassle-free oil changes
- VERSATILE APPLICATION - Perfect upgrade for all brands of 80W90 lower unit gear oil and gear lube applications
- PROUDLY AMERICAN, TRUSTED GLOBALLY - Choose STAR BRITE for a leading name in marine, auto, RV, home, and outdoor products since 1973, all proudly crafted in the USA for superior quality and performance
- API PERFORMANCE: ABRO Gear Lube GL-1 SAE 140 ensures optimal gear function, meeting the API GL-1 service classification.
- HIGH-CLASS LUBRICATION: This gear lube, a pure mineral oil, offers superior lubrication, reducing friction and wear in manual transmissions, differentials, and other gear applications.
- SAFETY FOR YELLOW METALS: ABRO’s gear oil is free of active compounds that could corrode brass, bronze or other yellow metals, guaranteeing their longevity.
- SPECIALIZED FORMULATION: The straight mineral API GL-1 gear oil is specifically designed for use in manual transmissions, steering gear boxes, and rear axles.
- CORROSION-FREE: Specially crafted without corrosive compounds, this SAE 140 gear lubricant ensures an extended gear life and uninterrupted top-notch performance.
- Brand: Royal Purple
- LTDType: Synthetic
- Viscosity: 75W-90
- Volume: 1qt.
- Mfgr. Warranty: No Warranty
- Condition: New Product
- Return Policy: Standard
- Flash Point: 161 Degrees Celsius
- Liquid Volume: 32 Fluid Ounces
- 80W-90 Weight
- High viscosity formula protects drives from high speed and high load use
- Formula includes unique rust and corrosion inhibitors to protect internal engine components even in saltwater environments
How to choose a good gear oils
Does the idea of finding a fantastic gear oils make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in gear oils. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top gear oils products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top gear oils on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top gear oils brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top gear oils based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the gear oils were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good gear oils, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your gear oils.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting gear oils for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our gear oils. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what gear oils should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on gear oils.
