Comma BF51L Dot 5.1 Synthetic Brake Fluid, 1 Liter

Product Information

Low Compressibility: This feature makes it an ideal choice for racing and high-performance applications where precision is paramount. However, the fact that it’s unregulated could be viewed as an advantage to the manufacturer because it means they have full control over the process of manufacturing their brake fluid. Silicone based fluid is more compressible than glycol based fluid, leading to brakes with a spongy feeling. [14] It can potentially suffer phase separation/water pooling and freezing/boiling in the system over time - the main reason single phase hygroscopic fluids are used. [ citation needed] Characteristics of common braking fluids [15] [14] DOT2: DOT2 brake fluid has a dry boiling point of 190 degrees Celsius. The wet boiling point is 140 degrees Celsius. This is a mineral oil-based fluid and is rarely used in the automotive industry thanks to its relatively low boiling points. Online Browsing Platform ISO 4925:2020 - Road vehicles -- Specification of non-petroleum-base brake fluids for hydraulic systems". www.iso.org.

Most drivers today are concerned about the boiling temperature of their brake fluid, and not too concerned if it meets DOT specifications or not. It also has a wet boiling point of 365 degrees, and viscosity at -40 degrees is 685mm2/s. The standard brake fluid change interval is two years but with Bosch ESI6-32N, you can get an impressive three years out of it, making it a great long-term solution. It also has a universal fit making it easy to install and use on any vehicle. 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. While on the other hand DOT 3 is not interchangeable with DOT 5 brake fluid. These two are completely different and do not overlap. So, if your car is not certified for DOT 5, you should avoid using it and instead use the 5.1 fluid instead. This will guarantee that you get the best performance for your money. The chemical components in DOT 3 vs. DOT 4 have a slight difference. DOT 3 is made by blending polyalkylene and ether, while DOT 4 is a mixture of borate and glycol. The glycol ether holds quite well in wet and hot conditions, which makes it a perfect choice for regular vehicles. DOT 4, on the other hand, has a high tolerance to water and is stable under high temperatures. 02. Boiling Point

What is the role of brake fluid?

The next thing is that it is not that compatible with ABS systems. It could cause a malfunction in the ABS system because it traps the air. And frankly, you don’t want to have air in your system when the ABS needs to engage. This means even a small leak of air could ruin the performance of this type of fluid in your car and prevent the ABS from working right.

The Society of Automotive Engineers SAE has published standards J1703, J1704, and J1705, reflecting progressively higher performance for brake fluids. These have counterparts in the international standard, ISO 4925.

A hydraulic braking system offers better modulation compared to mechanical cable-operated disc brakes, or rim brakes.

With the full range of brake fluids on offer from TRW, you can provide a suitable solution to all types of vehicles, regardless of age or specification. Remember, these are only the minimum standards. Brake fluid manufacturers can and often do improve on these figures and it is possible to find DOT 4 brake fluid with a higher boiling point than some DOT 5.1 fluids on the market.

ABS sensors

This improvement formula does not only contain ether glycol compound but also contains borate esters. This greatly improves the performance of this fluid and also allows it to run at really hot temperatures. Now let’s cover the last type of brake fluid which is the DOT 5.1 brake fluid. But why is this fluid called 5.1, is this some kind of an update to the DOT 5 brake fluid? Well, actually no.