What is Motor Vehicle Brake Fluid?

1 Answers
JaxonLee
07/29/25 7:47pm
Here is the relevant introduction about automotive brake fluid: 1. Automotive brake fluid is a liquid medium that transmits braking pressure in hydraulic braking systems, used in vehicles equipped with hydraulic braking systems. 2. Brake fluid, also known as brake oil or force fluid, is an indispensable part of the braking system. In the braking system, it serves as a force transmission medium. Since liquids cannot be compressed, the pressure output from the master cylinder is directly transmitted to the wheel cylinders through the brake fluid. 3. Because the seals in the braking system are made of rubber, prolonged immersion in brake fluid can cause chemical changes, leading to expansion or contraction of the rubber seals, thereby affecting braking performance. Therefore, it is essential to choose brake fluid that is highly compatible with rubber.
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