Brake fluid, also named as “automotive brake fluid or braking fluid”, works as a kind of fluid that transmits pressure in a hydraulic brake system to stop vehicle wheels from rotating. Brake fluid serves as a liquid medium that transmits the brake pressure in a hydraulic brake system. Since liquid cannot be compressed, the pressure from the brake master cylinder will be directly transmitted into the wheel cylinder via brake fluid which thus become a crucial security component in the brake system.
Relevant DOT/BF/HZY Criteria
DOT is the criteria widely adopted now by developed regions, such as the United States and Europe; BF is the criteria adopted by Japan; HZY is the criteria adopted by China.
Brake fluid is roughly divided into three categories: DOT3, DOT4 and DOT6. Among them, DOT3 and DOT4 are the most common brake fluid levels used in automobiles in various countries. HZY is formulated as per GB12981-2012 Motor Vehicle Brake Fluids of China that divides brake fluid into HZY3, HZY4 and HZY6, corresponding to DOT3, DOT4 and DOT6, respectively, in the international community.