Best Brake Fluid Reviews 2021 Everything You Want to Know
You never let your car down for any reason. Maybe you are always aware of doing the right things for the maintenance of your loving car. But what about your braking system? Is it just a part of your routine maintenance and never looked after carefully? If so, fasten your seatbelts. The braking system is a crucial component of keeping you safe on the road. And it should be treated as an important part of your car with more consciousness.
If you want your braking system to keep you safe everywhere, it requires an essential component to operate properly: brake fluid. Surprisingly many drivers have a little or no idea about what types of brake fluid they should use in their cars.
Like there are variations in types of oil and gases, the brake fluids also have differences in types and uses. And you should use the recommended brake fluid for your cars. Indeed, it’s not an easy task for any new driver to understand the right one for their car.
Don’t worry. We are here to help you out with the best brake fluids of 2021. We have researched extensively to find the best brake fluid for any type of car you are using. Check out the down sections. This article must help you make the right decision.
Best Brake Fluid Comparison Table
|Motul Rbf 660 Dot-4 Racing Brake Fluid 500 mL||Details||Check Price|
|Prestone 32 Ounce AS401 DOT 3 Synthetic Brake Fluid-32 oz||Details||Check Price|
|Castrol 12509 Dot 4 Brake Fluid (12 Oz)||Details||Check Price|
|Bosch ESI6-32N Brake Fluid (Direct Replacement for DOT 3, DOT 4, and DOT 5.1)||Details||Check Price|
|Maxima Racing USA 80-86916 DOT 4 Brake, 16.9 Fluid_Ounces||Details||Check Price|
|Endless RF-650 DOT 5.1 Racing Brake Fluid (Compatible w/DOT 4 Fluid) (CASE of 20)||Details||Check Price|
|Motul MTL100949 8068HL RBF 600 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid-500, 300. ml, 6 Pack||Details||Check Price|
Best Brake Fluid Buying Guide:
As you have learned already, brake fluids are important. So important that you need to be extremely cautious before put it into your braking system. There are quite a number of things you should consider to choose one and we can not but say you one thing, you must have a good grip on the “know how’s” of brake fluids. This knowledge will surely help you make the optimal decision about this important agent of your car’s braking system.
But where you can learn all the stuff? Don’t worry. That’s why we are here. We have researched all those things one should take into consideration before moving out for buying the best brake fluid for his dearest car. Here we enlisted all the things you need to know. Check the guide out!
Type of the Fluid: There are mostly three types of brake fluids classified by DOT numbers. They are DOT 3, DOT 4, and DOT 5 brake fluids. Both DOT 3 and DOT 4 are poly glycol based but they differ at boiling points. DOT 3 products are recommended for small-sized vehicles. Whereas DOT 4 products are specially considered for large-sized vehicles as they would produce more heat. DOT 5 brake fluids are totally different in composition, they are silicone-based and have higher boiling points.
Most of the time car manufacturers recommend the kind of brake fluid is compatible with the braking system. In that case, you should use that type.
Boiling Points: Your car’s braking system produces immense heat. So the fluid you are using must have the ability to cope up with the heat. That means it should have the dry and wet boiling points higher than the actual heat of the braking system. The dry boiling point is considered when the fluid is new and the wet boiling point is taken into account when the fluid is contaminated with water after a certain period of time. Try to seek the kind of fluid that has the highest boiling points and compatible with your vehicle.
Water Absorption: Braking systems are mostly made of rubber making the system porous letting moisture penetrate slowly. So the brake fluid becomes contaminated with water. Water has a less boiling point and thus when mixed with the brake fluid, generates dangerous vapor. This vapor can ruin the whole braking system and degrades the performance of your brakes. This is why you must choose the fluid that has good water absorption ability or a vapor lock feature.
Compatibility: Many of the fluids are specially designed for certain braking systems like disk brakes or drum brakes. Some designed for every type of brakes. You should carefully check the fluid whether it is compatible with your brake. Otherwise, this will cause serious issues.
Corrosion Resistance: This attribute is neglected most of the time. Your brake fluid must repel corrosion in areas such as master cylinders, wheel cylinders, and calipers. Look for a product that offers the corrosion-resistant features. Do check whether the fluid has corrosion resistance additives added.
Viscosity: The brake fluid must maintain a steady viscosity with respect to the temperature change of the braking system. This will ensure the stability of your braking system and help it function properly.
Best Brake Fluid FAQ:
What is the best brand of brake fluid?
There are quite a number of good brands and can not choose the best brand so easy. It depends on your specific brake system’s requirements.
If you have a racing car or the vehicle requires DOT 4 brake fluid, the Motul std color Dot-4 Racing Brake Fluid is the best brand for you. Though it is compatible with other types of vehicles too.
For DOT 3 required brake systems, Prestone DOT 3 Synthetic Brake Fluid is the best for overall performance
What is the difference between DOT 3 and 4 brake fluid?
They differ mostly in boiling points.
Both DOT 3 and DOT 4 brake fluids are polyglycol based. DOT 4 has higher dry and wet boiling points than that of DOT 3 brake fluids. Moreover, DOT 4 products have higher compatibility with vehicles ranging from big and small. DOT 3 brake fluids are usually recommended for small-sized cars.
Though you can use DOT 4 products instead of DOT 3 fluids. But the reverse is not sensible at all.
Nowadays most of the vehicles are compatible with both DOT 3 and DOT 4 fluids. So it won’t pose any threat using them interchangeably. But if your car manufacturer recommends a specific type, you should stick to that.
Can synthetic brake fluid be mixed with regular brake fluid?
No! Not at all. It’s a very bad idea to mix up different types of fluids together because it will create unprecedented boiling points.
Generally synthetic and regular fluids vary in the formula. Synthetic fluids use silicone as base fluid and regular fluids are mostly polyglycol based. As they have a difference in chemical composition, they won’t be compatible to mix up. And many brakes requires you to use a strict type of brake fluids all the time. So, never do that.
Though you can mix up fluids of the same DOT specification, but it also should be avoided for safety.
How much brake fluid do I need to flush?
You need at least one liter of fluid, often slightly more than that for doing a flush.
Never mix the new fluid with the remainder in the reservoir. This is malpractice because old fluids will contaminate this newer fluid with moisture and degrade its water absorption ability. Before bleeding, throw out all the older fluid and then pour the newer one.
You should flush the brakes after 30,000 kilometers of driving or once a year.
Can I just add brake fluid?
No! You can not just buy a bottle of fluid and pour it directly into the reservoir. You need to take some measures before that. First of all, bleed out all the remaining fluid from the reservoir. Because when contaminated with older fluid, the newer fluid will downgrade in performance. This little bit of precaution will help your fluid to sustain long and provide better performance.
Can I replace my own brake fluid?
Surely you can if you have enough competence to change the brake fluid. It is a very simple task indeed. But you have to be cautious about the process. Always make sure that you are using the exact kind of fluid your system requires (i.e. whether it has a DOT 3 or DOT 4 specification). Then you should empty up the whole tanker before pouring the brake fluid so that it does not corrupt with the older fluid. And keep in mind the safety concerns while performing the task.
What is the best DOT 3 brake fluid?
There is a number of good brands out in the market. But we have seen that the Prestone DOT 3 Synthetic Brake Fluid provides the best overall performance in case of DOT 3 specification. It has higher boiling points than other brands. It is compatible with every type of brakes. It also provides an extra margin of safety by protecting brakes from the dangerous vapor. You can use it without any concern at all.
Here we presented all the best brake fluids we have tested rigorously. These products are reliable and always provide the finest performance for your brakes. But before proceeding to buy any of them, please make sure that you have checked the brake fluid review carefully. The products presented here are standalone for their specific purpose and use. So do remember their variations and the requirements of your brake system. Then match the specifications with the perfect one.
Brake fluid is very important for your brakes and it can not be negligible at all. You can not be in a hurry to buy one. We would recommend you to consider every aspect of it. If you still have confusion, you can check the buying guide and the FAQ section. This will surely help you to make the right decision.