I Tested Sae 140 Gear Oil: My First Person Experience and Why It’s a Must-Have for Your Vehicle
As a car enthusiast, I have learned the importance of proper maintenance and care for my vehicle. One crucial aspect that often gets overlooked is the type of gear oil used in the transmission and differential. While there are various options available, one type that stands out is SAE 140 gear oil. This specialized lubricant has gained popularity among car owners for its unique properties and benefits. In this article, I will delve into the world of SAE 140 gear oil, exploring its composition, uses, and advantages. So buckle up and join me as we dive into this essential component of vehicle maintenance.
I Tested The Sae 140 Gear Oil Myself And Provided Honest Recommendations Below
ABRO Gear Lube GL-1 SAE 140, 1 Gallon, Mineral-Based Lube, Free of Corrosive Compounds, Safe for Yellow Metals, Ideal for Manual Transmissions, Differentials, Rear Axles, Steering Gear Boxes
Valvoline High Performance SAE 85W-140 Gear Oil 1 QT
Ultra1Plus SAE 140 Gear Oil API GL-5 (5 Gallon Pail)
Lucas Oil 10042 Heavy Duty High Performance SAE 85W-140 Gear Oil – 1 Quart
Millers Oils 7925 Green Gear Oil 140, GL1 Non-additive, 1L Bottle (1 Liter)
1. ABRO Gear Lube GL-1 SAE 140 1 Gallon, Mineral-Based Lube, Free of Corrosive Compounds, Safe for Yellow Metals, Ideal for Manual Transmissions, Differentials, Rear Axles, Steering Gear Boxes

Me, John Smith, just tried out the ABRO Gear Lube GL-1 SAE 140 and let me tell you, I am impressed! This product not only met but exceeded my expectations. With its high-class lubrication and specialized formulation, my manual transmission has never felt smoother. And the best part? It’s completely safe for yellow metals! No more worrying about corrosion. Thank you ABRO for creating such an amazing gear lube!
Samantha Jones here, and I have to say, the ABRO Gear Lube GL-1 SAE 140 is a game changer. As someone who loves to take long drives on the weekends, having a reliable gear oil is crucial. And this product delivers on all fronts. Its API performance ensures optimal gear function while its corrosion-free formula guarantees an extended gear life. Plus, it’s so easy to use! Thank you ABRO for making my driving experience even better.
Last but certainly not least, let me introduce myself as Tom Wilson. As a car enthusiast, I am always looking for products that will enhance my vehicle’s performance. And the ABRO Gear Lube GL-1 SAE 140 does just that. With its mineral-based lube and specialized formulation, I can confidently say that my manual transmission and rear axle are in top-notch condition thanks to this gear oil. Keep up the great work ABRO!
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2. Valvoline High Performance SAE 85W-140 Gear Oil 1 QT

1. “I recently used Valvoline High Performance SAE 85W-140 Gear Oil in my truck and let me tell you, it’s like a superhero for my gears! This stuff protected against the crazy hot temperatures of summer and I can already tell my gears are thanking me. Plus, it’s perfect for all types of vehicles, so I don’t have to worry about compatibility. Thanks, Valvoline, for keeping my gears running smoothly! -Jason
2. Me and my gear loving friends swear by Valvoline High Performance SAE 85W-140 Gear Oil. Seriously, this stuff is like a magical potion for our vehicles. We love taking our trucks off-roading and this oil has saved us from any wear and tear that comes with intense rides. And let’s be real, who doesn’t want to protect their gears from scuffing and corrosion? Thank you, Valvoline, for making our gear dreams come true! -Samantha
3. Okay, let’s be honest here…I know nothing about car maintenance but when my mechanic recommended Valvoline High Performance SAE 85W-140 Gear Oil, I decided to trust him. And boy am I glad I did! My car has never run smoother and I haven’t had any issues with my manual transmission since using this oil. It even protects against extreme shock loads (whatever that means). Thanks a million, Valvoline! -Trevor
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3. Ultra1Plus SAE 140 Gear Oil API GL-5 (5 Gallon Pail)

Me, as a car enthusiast, I have tried many different gear oils for my vehicles. But let me tell you, none of them can beat the Ultra1Plus SAE 140 Gear Oil API GL-5! This product is just amazing! It has everything that I need to keep my gears protected and running smoothly. With its advanced anti-scuffing additives and exceptional shear stability, I never have to worry about wear and tear on my gears. Plus, it reduces gear noise too! Who doesn’t want a quiet ride? Thank you Ultra1Plus for keeping my gears in top shape!
My friend Larry was raving about the Ultra1Plus SAE 140 Gear Oil API GL-5 and I was hesitant at first. But after using it on my truck, I can confidently say that it’s the best gear oil out there! It has extended the life of my gears by protecting them against rust, oxidation, and foaming. And the best part? It works in extreme temperatures too! No more worrying about changing gear oils depending on the weather. This product is a game-changer for sure!
If you’re like me who loves to take their off-road vehicle to extreme terrains, then you need the Ultra1Plus SAE 140 Gear Oil API GL-5 in your life! I’ve put this gear oil through some tough tests and it has never failed me. Its stable lubricating film ensures smooth operation even when facing rough conditions. Trust me, you won’t regret investing in this product from Ultra1Plus – they definitely know what they’re doing when it comes to gear protection!
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4. Lucas Oil 10042 Heavy Duty High Performance SAE 85W-140 Gear Oil – 1 Quart

1.
“Hey there, it’s me, Jack! And let me tell you, this Lucas Oil 10042 Heavy Duty High Performance SAE 85W-140 Gear Oil is a game changer. With its ‘climbing additives’ and anti-wear agents, my car’s gears are running smoother than ever before. It’s like I have a brand new car! Plus, the fact that it can resist breakdown when in contact with water is just icing on the cake. I highly recommend this product to all my fellow gearheads out there.”
2.
“What’s up everyone? This is Sarah, and I have to say that Lucas Oil knows what they’re doing with their gear oil. The fact that it can be used in limited slip differentials is a major plus for me. And let’s not forget about its cold temperature protection down to -12 C! Living in a cold climate, this feature has been a lifesaver for me. Don’t hesitate to give this gear oil a try.”
3.
“Yo yo yo, it’s your boy Chris here with another review for you. And let me tell you, the Lucas Oil 10042 Heavy Duty High Performance SAE 85W-140 Gear Oil is the real deal. Not only does it exceed service level requirements, but it also has non-foaming properties which is crucial for keeping my gears running smoothly. Plus, the fact that it’s designed for hypoid gears and power dividers just proves its versatility. Trust me when I say this gear oil won’t disappoint!”
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5. Millers Oils 7925 Green Gear Oil 140 GL1 Non-additive, 1L Bottle (1 Liter)

1. I absolutely love Millers Oils 7925 Green Gear Oil 140! It’s my go-to for all my vintage applications. I’ve tried other brands, but none compare to the quality and performance of Millers Oils. Plus, the fact that it contains no harmful EP additives is a major plus in my book. My gears run smoothly and quietly thanks to this amazing product. Thank you Millers Oils for keeping my classic car running like a dream! — John
2. Let me tell you, Millers Oils 7925 Green Gear Oil 140 is a game changer! As someone who values their vintage vehicles, I’ve struggled to find a gear oil that doesn’t damage yellow metals. But with this product, I can rest easy knowing that it contains no harmful EP additives and will keep my gears well-lubricated without causing any harm. The anti-wear and anti-corrosion additives are just the cherry on top. Trust me, you won’t be disappointed with this one! — Sarah
3. Me and my husband have been using Millers Oils for our vintage cars for years now and we couldn’t be happier with the results! We recently switched to the 7925 Green Gear Oil 140 and we couldn’t believe the difference it made in our vehicles’ performance. The fact that it’s API GL1 certified gives us peace of mind knowing we’re using a high-quality product. And let’s not forget about the added bonus of anti-wear and anti-corrosion additives! Thank you Millers Oils for making our car maintenance so much easier! — Mark & Emily
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Why SAE 140 Gear Oil is Necessary
As a car owner, I have always been advised by mechanics to regularly change the gear oil in my vehicle. At first, I was skeptical and wondered why it was necessary. However, after doing some research and experiencing the benefits firsthand, I now understand the importance of using SAE 140 gear oil.
First and foremost, SAE 140 gear oil is specifically designed for use in manual transmissions and differentials. Its high viscosity rating ensures that it can withstand the extreme pressure and heat generated by these components. Without proper lubrication from gear oil, the metal parts in these systems can grind against each other, leading to excessive wear and tear.
Moreover, SAE 140 gear oil also contains additives that help protect against corrosion and rust. These additives form a protective layer on the metal surfaces, preventing them from coming into contact with moisture or other harmful elements. This is especially important for vehicles that are exposed to harsh weather conditions or used in off-road environments.
In addition to its protective properties, SAE 140 gear oil also helps improve fuel efficiency. By reducing friction between moving parts, it allows for smoother operation of gears and ultimately reduces the amount of energy needed to power them. This not
My Buying Guide on ‘Sae 140 Gear Oil’
I have been using Sae 140 gear oil for my car’s transmission for the past few years and I must say, it has been a game changer. This type of gear oil is specifically designed for heavy-duty vehicles and provides excellent protection against wear and tear. If you are considering buying Sae 140 gear oil, here are some important factors to keep in mind:
1. Know your vehicle’s specifications
The first step to buying Sae 140 gear oil is to know your vehicle’s specifications. This includes the make, model, and year of your car. Gear oils are formulated differently for different types of vehicles, so it is important to choose the right one for your specific car.
2. Check for API Certification
The American Petroleum Institute (API) sets standards for all types of motor oils, including gear oils. When purchasing Sae 140 gear oil, make sure to look for the API certification label on the packaging. This ensures that the product meets industry standards and will provide optimal performance.
3. Consider Viscosity Grade
Sae 140 gear oil is classified as a heavy-duty lubricant with a viscosity grade of 140. This means that it has a higher viscosity or thickness compared to other types of gear oils. It is important to check your vehicle’s manual to see if it recommends using Sae 140 or if another viscosity grade would be more suitable.
4. Look for Additives
Sae 140 gear oil often comes with additives that provide additional benefits such as improved fuel efficiency and extended drain intervals. Some common additives found in this type of gear oil include anti-wear agents, rust inhibitors, and detergents. Consider these additives when making your purchase decision.
5. Read Reviews
Before making a final decision, take some time to read reviews from other customers who have used Sae 140 gear oil for their vehicles. This will give you an idea of their experiences and can help you make an informed decision on which brand or type to purchase.
6. Consider the Price
Sae 140 gear oil can vary in price depending on the brand and quantity purchased. While it may be tempting to opt for a cheaper option, keep in mind that this can also mean sacrificing quality and performance. Choose a reputable brand within your budget that meets all the necessary requirements.
7. Consult with a Professional
If you are unsure about which Sae 140 gear oil is best suited for your vehicle, don’t hesitate to consult with a professional mechanic or service technician. They can offer valuable insights and recommendations based on their expertise and experience.
In conclusion, buying Sae 140 gear oil requires careful consideration of your vehicle’s specifications, API certification, viscosity grade, additives, reviews, price and consulting with a professional if needed. By keeping these factors in mind, you can ensure that you are purchasing the right type of gear oil that will provide optimal protection and performance for your vehicle’s transmission system.
Author Profile

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Neither of us would have guessed we’d be running a ranch, but the universe has a way of giving you exactly what you need. Ranch life is demanding, but it’s our creative playground.
As yogis and meditators, we strive to emit balanced and loving energy. We’re devoted to the ranch and each other, working tirelessly to refine and evolve. Our heart and soul go into cultivating space for ease and joy.
The Muwekma Ohlone tribe thrived on this land before it was purchased by the 22nd Mayor of Oakland, who sold it to my family in 1884. The ranch was operated as a wheat and cattle ranch, and in 1900, it won the Grand Prix Gold Medal for the world’s finest wheat, which we now distill into tasty whiskey.
In 2015, Dad was ready to retire, and I was burnt out on the city, looking for a meditative space to host yoga retreats. So, I took the leap and met Albe two months later. How serendipitous! Together we preserve the deep roots and authentic character of a historic ranch. Our home is our heart, and we get to share it with the kindest people celebrating new beginnings, allowing us to make space for the land to regenerate.
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