What Type Of Brake Fluid Does Harley Use?

What type of brake fluid does Harley Davidson use in their motorcycles? Should I use DOT 3, DOT 4 or DOT 5? Is synthetic oil better? Answers to questions like these coming up in the article below.

Harley owners often ask in forums about the kind of brake fluid that works well with their bikes. This is a question that many riders have asked, and there is not a clear answer. 

Some people say they use DOT 3 brake fluid, while others use DOT 4. So what is the truth? Let’s look at the different brake fluids and determine which one Harley Davidson uses.


What Type Of Brake Fluid Does Harley Use

What Type Of Brake Fluid Does Harley Use?

Harley-Davidson motorcycles require a specific type of brake fluid to ensure optimal performance and safety. The recommended brake fluid for current Harley-Davidson brakes is DOT 4 synthetic brake fluid. This type of fluid provides superior performance in terms of both boiling point and freezing point

This helps to improve braking performance in extreme conditions. DOT 4 synthetic brake fluid also has a higher moisture tolerance than other fluids, meaning it can withstand exposure to moisture without degrading.

Can I Use DOT 4 Brake Fluid In A Harley? 

You can use DOT 4 brake fluid in a Harley, but it’s not recommended. DOT 4 fluid has a greater boiling point than the fluids typically used in Harley brakes, so it may not provide adequate protection against brake fade. In addition, DOT 4 fluid is more corrosive than other fluids and may damage your brake system over time. If you use DOT 4 fluid in your Harley, check your brakes frequently and bleed them according to the manufacturer’s instructions.

Do All Harleys Use DOT 5 Brake Fluid?

All older Harleys from ’76 to ’05 used to require DOT 5 brake fluid.However, you have to be careful with this type of fluid because you cannot mix it with other types, it is not glycol based.

DOT 5 brake fluid is a synthetic brake fluid designed for use in vehicles that require higher boiling points than DOT 3 and DOT 4 fluids. DOT 5 fluid can withstand higher temperatures without vaporizing. Harleys are one of the few motorcycles that can use this type of brake fluid. 

While DOT 5 fluid is not required for all Harleys, it can benefit those who ride in hot weather or do a lot of stop-and-go riding. This makes it ideal for high-performance applications where braking temperatures can be very high. 

If you’re unsure whether your Harley uses DOT 5 fluid, check your owner’s manual or ask a dealer or service professional.


You might also like to read: What Happens When You Run Out Of Brake Fluid?


What Kind Of Brake Fluid Do You Use On A Motorcycle?

If you’re like most motorcycle riders, you probably don’t think much about what kind of brake fluid you use. After all, does it matter as long as it stops your bike when you need it to?

As it turns out, there are different types of brake fluid, and each has its advantages and disadvantages. So if you’re looking for better performance from your brakes, it’s worth doing some research to find out which type of lube is right for your bike.


The most common type of brake fluid is DOT 3. This fluid is designed for vehicles with disc brakes, and it provides a good balance of performance and durability. DOT 3 fluid is also relatively affordable, making it a good choice for riders on a budget.


However, if you’re looking for the best possible performance from your brakes, you’ll want to use DOT 4 fluid. This fluid is designed for vehicles with both disc and drum brakes, and it provides superior performance in both types of systems. DOT 4 fluid is also more resistant to heat than DOT 3 fluid, making it a good choice for riders who do a lot of high-speed riding.


Finally, if you live in an area with frigid winters, you may consider using DOT 5 fluid in your bike’s brakes. This fluid is designed for use in freezing weather, and it can help keep your brakes working correctly even when the temperature dips below freezing.


What Type Of Brake Fluid Does Harley Use

What is better, DOT 3 or DOT 4?

DOT 3 and DOT 4 are both types of brake fluid. DOT 3 is a glycol-based fluid, while DOT 4 is a silicone-based fluid. Both fluids have pros and cons, depending on your personal preferences and which one you choose. 

DOT 3 brake fluid is less expensive than DOT 4, but it doesn’t last as long. DOT 4 brake fluid is more expensive, but it lasts longer. So, if you’re looking for a budget-friendly option, DOT 3 might be the way to go. If you want a longer-lasting option, DOT 4 would be better suited.


You might also like to read: Brake Fluid Pressure Is Measured In What Unit?


What Is DOT 5 Brake Fluid Used For?

DOT 5 is a brake fluid specifically designed for use in vehicles with disc brakes. It is made from a synthetic glycol base and has a high boiling point, ideal for high-performance applications. DOT 5 is also compatible with all types of rubber and seals in any vehicle. However, it should not be used in vehicles with drum brakes because it is not as compressible as DOT 3 or 4 fluids.

Can I Use DOT 3 Instead Of DOT 4?

Yes, you can use DOT 3 instead of DOT 4 brake fluid. DOT 3 is the standard type of brake fluid found in vehicles. It is also the preferred type of brake fluid for most automotive applications. However, you should be aware of some differences between DOT 3 and DOT 4.


DOT 3 brake fluid is glycol-based, while DOT 4 is a silicone-based fluid. DOT 3 is more susceptible to moisture absorption than DOT 4. Over time, this can lead to corrosion and reduced performance of the brakes. For this reason, it is imperative to check the level and condition of your brake fluid regularly and replace it as needed.

What Happens If I Mix DOT 3 And DOT 4 Brake Fluid?

If you mix DOT 3 and DOT 4 brake fluid, it can cause problems with your braking system. The two types of fluid have different boiling points, so combining them can lower the overall boiling point of the liquid. This can make your brakes overheat and fail. It’s essential to use the correct fluid type for your vehicle to avoid any issues.


What Type Of Brake Fluid Does Harley Use

Can I Use DOT 4 For Bike Brakes?

Yes, you can use DOT 4 for bike brakes. DOT 4 is a synthetic brake fluid with a higher boiling point than DOT 3, ideal for high-performance applications. However, DOT 4 can damage paint and finishes, so be sure to use it sparingly and only on clean surfaces.

Do Motorcycles Need Special Brake Fluid?

The answer may surprise you. Many people believe that because motorcycles have smaller brakes than cars, they must require a different fluid type. 

However, this is not the case. Motorcycles can use the same type of brake fluid as cars. The only difference is that motorcycle brakes may require a higher boiling point fluid to prevent brake fading during extended use. 


You might also like to read: No Brake Fluid To Rear Brakes When Bleeding: 6 Reasons Why This Happens


Is Synthetic Brake Fluid Better?

There are many factors to consider when deciding whether to use synthetic or conventional brake fluid. The most important ones include compatibility with your vehicle’s braking system, cost, and performance in extreme temperatures.

The biggest advantage of synthetic brake fluid is that it is often more compatible with newer, high-performance braking systems. This can be extremely important for ensuring optimal braking performance. 

Additionally, synthetic brake fluid typically has a higher boiling point than conventional fluids, making it less likely to vaporize under extreme heat conditions. This can be a significant advantage in hot climates or during extended periods of heavy braking.

However, synthetic brake fluid also tends to be more expensive than conventional fluids. Additionally, while it may perform better in extreme conditions, it is not necessarily the best choice for all drivers. If you are unsure which type of brake fluid is right for your vehicle, it is always best to talk to a professional mechanic or dealership.


What Type Of Brake Fluid Does Harley Use

Other Frequently Asked Questions About Harley Davidson Bikes

#1. Who Makes Harley Davidson Brake Pads?

Many manufacturers make a variety of brake pads for Harley-Davidson. Some of the most popular brands include EBC, K&N, and S&S. 

These companies all specialize in aftermarket parts for motorcycles, so you can be sure that their products are of high quality and designed to withstand the rigors of riding. 

When choosing the suitable brake pads for your Harley, it’s essential to consider both performance and aesthetics. 

  • If you’re looking for maximum stopping power, go with a set of EBC pads. 
  • However, if you want your bike to look good and perform well, opt for K&N or S&S pads.

Whichever brand you choose, follow the manufacturer’s instructions for installation and use.


You might also like to read: What Does Brake Fluid Smell Like?


#2. What Kind Of Oil Do You Put In A Harley Davidson Transmission?

Harley-Davidson recommends using SAE 80W-90 oil in the transmission. This oil is specially formulated to provide optimum performance and protection for Harley-Davidson motorcycle transmissions.

SAE 80W-90 oil is a heavy-duty oil designed to provide superior protection and performance in demanding conditions. This oil is ideal for use in Harley-Davidson transmissions, as it can help to extend the life of the transmission and keep it running smoothly.

Harley-Davidson also recommends using a transmission filter when changing the oil in your transmission. Transmission filters help remove contaminants from the oil, which can prolong the life of your transmission.

Wrap Up

Harley Davidson bikes are a brand that has become legendary in the motorcycle industry. These beasts of the road need special care and maintenance, because of the kind of riding pleasure they give. 

While DOT 4 brake fluid usually works for most of these bikes, you still should check the Harley website or your bike’s manual for the final word from Harley themselves.

Thank you for reading the article, we hope w took care of all your queries. If you still have questions, drop us a word and we will get back to you.

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Sean Mendez

Hi, I am Sean, a self-confessed petrolhead. I live in Boise, Idaho with a busy family of four and our energetic Labrador retriever. Thank you for visiting my website. You can find my email on the contact page.

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