Everything You Need To Know About GL6 Gear Oil


Gear oils play a very important role in the overall health and longevity of a vehicle’s transmission. Though there are various gear oils available, GL6 is one of them.

GL6 Gear Oil is an advanced, high-performance gear oil designed to meet the stringent requirements of automotive, industrial, and off-highway transmissions. It is designed to provide superior lubrication and protection under the toughest operating conditions.

This article will discuss everything you need to know about GL6 gear oil. So why late? Let’s get started with it.

Related: Mixing Gearbox Oil: What You Need to Know

 Applications of GL6 Gear Oil

What is the GL Rating on Gear Oil?

GL rating is an abbreviation for Gear Lubricant Rating, a classification system used to rate the quality of gear oil. Gear oil is a type of lubricant specifically designed for use in gearboxes, transmissions, and other mechanical equipment requiring thick oil for lubrication.

Gear oil has a higher viscosity than conventional motor oil, which allows it to remain in contact with the gears for longer periods and provide better lubrication. The GL rating system is used to classify gear oil based on its performance in terms of oxidation stability, wear protection, anti-foam properties, and corrosion resistance.

The ratings range from GL-1 to GL-5, with GL-1 being the lowest quality and GL-5 being the highest. Gear oil with a higher GL rating will generally provide better performance in terms of wear protection and oxidation stability. So, when choosing a gear oil, it is important to consider the GL rating.

What Is GL6 Gear Oil?

GL6 Gear Oil is a heavy-duty lubricant designed for use in manual transmissions and differentials. It is formulated to provide superior protection and performance in high-load and high-temperature applications. This oil is made with a special blend of base oils and advanced additives to provide superior protection and performance in high-load and high-temperature applications.

It is designed to reduce wear and extend the life of manual transmissions and differentials. GL6 Gear Oil is typically recommended for manual transmissions and differentials in vehicles with high-performance engines or applications subject to high loads or temperatures. GL6 Gear Oil is designed for cars, trucks, and other vehicles with manual transmissions and differentials.

With a little research, you will find countless GL6 gear oils on the market. But all things considered, 85w140 gear oil GL6 is the best. It is a very popular gear oil, affordable, and able to give you the most benefits.

See: 75W140 Synthetic Gear Oil

How Is GL6 Gear Oil Made?

GL6 gear oil is made through a process of distillation and hydrotreating. In the first step, crude oil is heated and vaporized. The vaporized oil is then passed through a series of tubes, cooled, and condensed into a liquid.

After that, the liquid oil is treated with hydrogen to remove sulfur and other impurities. The hydrogen also converts the oil into a form that is more resistant to oxidation and corrosion. This process produces a high-quality lubricant that can be used in a wide range of applications.

Applications of GL6 Gear Oil

Gear oils have a variety of applications, GL6 gear oil being one of them. It’s used in many machines and vehicles, such as cars, trucks, boats, and motorcycles.

GL6 gear oil is also used in industrial machinery. This includes things like turbines, compressors, and pumps. Using the correct gear oil in these machines is important, as using the wrong type can cause damage.

Not only is GL6 gear oil essential for machines and vehicles, but it’s also important for people. It helps keep our bodies moving by lubricating our joints. GL6 gear oil can help reduce inflammation and pain, which is why it’s often used as a natural remedy for arthritis and other joint problems.

GL6 Gear Oil

How Does GL6 Gear Oil Work?

GL6 gear oil creates a lubricated coating that prevents metal surfaces from directly contacting each other. This reduces the risk of frictional wear and tear. On top of that, it also serves as a coolant, absorbing heat generated by the moving components to reduce friction further.

It is also designed to provide superior protection against rust and corrosion since it is formulated with additives that help prevent these two conditions. It also helps reduce oil degradation over time, so you can be sure that your transmission will be well taken care of, no matter how long you use your car or truck.

Finally, GL6 gear oil helps maintain proper viscosity so it will stay thick and thin at any given temperature and thus won’t affect the performance of your vehicle’s transmission system. So if you want to enjoy great performance for a long time, GL6 gear oil is worth considering for your vehicle maintenance needs.

How to Use GL6 Gear Oil?

When using GL6 gear oil, the key is finding out what gearbox your car has. This will help determine the correct viscosity of the oil you need. Also, checking the manufacturer’s guidelines before you start is important.

Once you have all the required information, you can get started. The process is quite simple – drain out any old gear oil in the gearbox and then fill it up with new GL6 oil. Make sure to fill it up per the manufacturer’s guidelines, and keep it the same because this could cause issues.

It’s important to ensure that everything is properly sealed afterward so that none of the oil leaks. To do this, you can use gaskets or seals depending on your car’s gearbox. Once everything is sealed properly, give your car a test drive and ensure everything feels right when changing gears.

If everything seems good, then congratulations! You’ve successfully installed GL6 gear oil in your car.

Benefits of Using GL6 Gear Oil

GL6 gear oil is a specialized lubricant designed for use in manual transmissions, transfer cases, and differentials. It is formulated with extreme pressure (EP) additives that provide superior protection against wear, rust, and corrosion. Here are some of the benefits of using GL6 gear oil:

Improved Lubrication

You might switch to GL6 gear oil for many reasons, but one of the most compelling is the improvement in lubrication it offers. GL6 gear oil forms a thick film on the metal surfaces it touches, which helps reduce metal-to-metal contact and wear. Tests have shown that GL6 gear oil can help increase gear life by up to 400%.

Prolonging the life of your gears can also translate into smoother, quieter operation and cooler temperatures. You’ll also spend less time and money on repairs and replacements, making GL6 gear oil a cost-effective choice for your business.

Enhanced Durability

Gear oil is essential for protecting your equipment and extending its life. That’s why GL6 gear oil is engineered with enhanced durability in mind.

Its unique formula reduces wear and tear on your equipment, leading to a longer life and less maintenance. Plus, it helps keep your equipment running cooler and quieter, so you can focus on the task without any distractions.

Temperature Control

Did you know that using GL6 gear oil can help you control temperatures? That’s because of its unique chemical composition, which helps it maintain high viscosity levels even in extreme temperatures. This means that it won’t become too thin when the temperatures are hot and won’t become too thick when the temperatures drop, ensuring that your gearbox runs efficiently all year round.

This temperature control can also help reduce wear and tear on your gearbox components. After all, when oil is too thin or too thick, it won’t lubricate them properly, which could lead to friction between them. So by using a GL6 gear oil, you can rest assured that your gearbox will run smoothly and last longer.

Reduced Noise

GL6 gear oil is also known for reducing noise, making it an ideal choice for many applications. The thinner viscosity of the oil ensures that the gears can turn more smoothly and quietly than with traditional oils. This makes it great for heavy-duty applications where noise levels must be controlled.

The reason why GL6 gear oil can reduce noise compared to other oils is that it has a higher flash point, which means that it burns off more slowly and doesn’t create as much smoke or heat as other oils do. This results in less friction between the gears, meaning they don’t have to work as hard and can operate more quietly.

Cleaner Operation

Another important benefit of using GL6 gear oil is cleaner operation. The lubricant helps prevent the buildup of dirt, dust, and other contaminants, which can cause the components to wear down faster. The oil also helps reduce friction and heat, which can cause parts to overheat and fail prematurely. This oil helps reduce the risk of oil leaks, which can be extremely costly.

GL5 VS GL6 Gear Oil- Which is Better to Choose

Are you figuring out which is better, between GL5 VS GL6 gear oil? The truth is, it depends on what your needs are.

GL5 gear oil is more affordable than GL6 gear oil, but it offers a different level of protection and performance. It also tends to cause more noise and friction. On the other hand, GL6 gear oil offers improved lubrication, enhanced durability, better temperature control, reduced noise, and cleaner operation.

Read Also : GL5 Vs GL4 Gear Oil

So if you need a higher level of protection and performance, then GL6 gear oil is the way to go. However, if cost is a major factor in your decision-making process and you don’t need maximum performance and protection levels, then GL5 may suit your needs.

Final Thought

All in all, GL6 gear oil is a high-quality product that can keep your car running smoothly for a long time. It is important to follow the manufacturer’s instructions carefully when using this product. If you have questions about how to use GL6 gear oil, ask a qualified mechanic for advice.

Read About: Why Does Gear Oil Smell So Bad? Reasons And Fix


Rio is a car & motorcycle mechanic who is working with different kinds of problems relating to oil and grease. He is also a passionate technical writer.