Comma BF51L Dot 5.1 Synthetic Brake Fluid, 1 Liter

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We aim to exceed expectations in all that we do, which is why we carry out more thorough tests and examinations of our brake fluids than anybody else. Safety critical testing areas include wet and dry boiling points and viscosity, which helps us to far surpass the requirements of the international DOT SAE 1703 specifications. The chief disadvantage of DOT fluid is that it is hygroscopic, which means it absorbs water, unlike mineral oil. But what does the DOT means? Well, this is only an abbreviation for the Department of Transportation. This is the institution that standardizes these types of fluids and makes them a standard on cars. High-Performance: Its excellent heat resistance ensures consistent braking effectiveness even under severe conditions, enhancing road safety. Brake fluids must have certain characteristics and meet certain quality standards for the braking system to work properly.

The fluid was a low viscosity fluid based on diluted alcohol. [11] 49% alcohol 49% distilled water 1% triethanolamine phosphate ( surfactant) 1% sodium mercaptobenzothiazole ( stenching agent) Characteristics [ edit ] Designed for All Brake Systems: Whether your bike uses a traditional or a modern brake system, this fluid is designed to work seamlessly.However, even if it is safe to mix them professionally, I would not advise you to combine them. DOT 4 is an alternative to DOT 3 but not the other way round. Make sure that you have flushed out all the brake fluid from the brake system before you fill the reservoir with another type of brake fluid. This brake fluid can withstand temperatures as much as 311 degrees and has a viscosity of 1800 at 40 F. What is DOT 5 Brake Fluid? In this article, we have covered quite a bit when it comes to the DOT 5 brake fluid. First, we learned what this DOT means in the first place and then we covered all the types of fluids and their characteristics. DOT brake fluid meets stringent specifications and standards set by the Department of Transportation and the Society of Automotive Engineers. DOT gets its name from the Department of Transportation. The standards focus on maintaining the performance of brake fluids in both low and high temperatures. They also give specifications on the minimum boiling temperatures to which the manufacturers of the fluid should adhere.

There are various brake fluid types just like we have seen in the above DOT 3 vs. DOT 4 article. The type of brake fluid you choose will depend on the type of brake system you are using. Most vehicle manufacturers will also recommend for you the brake fluid you should use. Now let’s discuss the cons of DOT 5 brake fluid. And frankly, there is a lot to talk about when it comes to the cons of this type of fluid. For a faster reaction of the ABS and ESP systems, DOT 4 and DOT 5.1 brake fluids exist with low viscosity meeting the maximum 750 mm 2/s viscosity at −40°C (−40°F) requirement of ISO 4925 class 6. [2] These are often named DOT 4+ or Super DOT 4 and DOT 5.1 ESP. While your brakes are very unlikely to ever reach these pressures, there is an increased chance of brake fade when the fluid has ingressed water over time and the system is being heated up, for example on a long Alpine descent, compared to when it has been newly bled. DOT5 : DOT5 brake fluid has a dry boiling point of 260 degrees Celsius and a wet boiling point of 180 degrees Celsius.The rubber component swell in DOT 3 brake fluid is minimal, thus reducing the loss of fluid and leakages. It also has excellent corrosion protection, which improves the reliability and life of the components in the brake system.

Because of the slow adoption of the DOT 5, something had to be done. A ton of carmakers didn’t want to swap to this type of brake fluid so there needed something to be done. Even though, by the numbers, DOT5 looks like the best brake fluid for your car based on the boiling point, you're definitely going to need to refer to your owner's manual if you're not sure to find out what kind of fluid you need to use. Most cars do not take DOT5 brake fluid, so never assume it’s the right choice for your brake system if you don’t know for sure. This means you should avoid mixing mineral oils and you’ll normally need to buy it from a local bike shop or online bicycle retailer, unlike DOT, which is more readily available given it’s used in the automotive industry.The advantage of the Citroën LHM mineral oil based brake fluid is the absence of corrosion. Seals may wear out at high mileages but otherwise these systems have exceptional longevity. It cannot be used as a substitute without changing seals due to incompatibility with the rubber. [17] [ user-generated source] Compressibility [ edit ]