How to Know When to Replace Brake Fluid?

[LaJohn]

Methods to determine if brake fluid needs replacement are: 1. Open the brake fluid reservoir cap; if the fluid appears turbid or black, it needs replacement; 2. After driving at a normal speed above 40km/h, apply sudden braking; if the braking distance significantly increases, replacement is required; 3. If braking feels soft or unstable during normal driving, replacement is needed. Brake fluid should be replaced every two years or approximately every 30,000 kilometers. The functions of brake fluid are: 1. It has a very low freezing point, ensuring good fluidity at low temperatures; 2. It has an extremely high boiling point, preventing vapor lock at high temperatures; 3. It does not cause corrosion to metal or rubber.