Teach you how to judge brake oil quality

Brake fluid, also called brake fluid, is an important factor affecting the performance of the vehicle brake system. In use, the quality of the brake fluid is a factor of concern. So, what are the characteristics of high-quality brake fluids?

1. The low-temperature fluidity is very good, which is particularly evident in severe cold regions. Using high-quality brake fluids is as sensitive and reliable as braking in cold weather. The use of poor quality brake fluid temperature performance, high freezing point, temperature below 20 °C will have a solidification phenomenon, greatly affecting traffic safety.

2. Good anti-rust properties for various metals in the braking system. Generally, the brake fluid is corrosive, but the high-quality brake fluid greatly reduces corrosion resistance and corrosion resistance of various metals, and can extend the life of the brake oil pump. If a bad brake fluid is added, it will quickly corrode metal and cause damage to the vehicle. .

3, no corrosion of various rubber. After the use of high-quality brake fluid, skin cups rarely swell and deform. If inferior brake fluid is used, the bowl will easily swell and deform, causing the vehicle to leak oil and turning over during braking, causing an accident. The standard brake fluid expansion rate is generally within 0.1% 5%. 5, long-term use without sediment. Brake fluid is used under high temperature for a long time. If the quality is unstable, it will produce thermal decomposition and produce sediment, which also affects the braking performance.

4, the higher the boiling point the better, lower evaporation. The boiling point is not lower than 205°C. When the car is driving for a long time and driving at high speed or downhill, the temperature can reach hundreds of degrees. The temperature of the brake fluid rises as the temperature of the brake shoe rises. If the boiling point of the brake fluid is not high enough, the brake fluid vaporizes, bubbles are generated, the brakes become soft, and the braking purpose cannot be achieved immediately, and the driving safety cannot be guaranteed.