What is the replacement interval for brake fluid?

[McJackson]

Brake fluid should be replaced every 2 years or 40,000 kilometers. Characteristics of brake fluid: 1. It has good viscosity-temperature properties and a low freezing point, ensuring excellent fluidity at low temperatures; 2. It has a high boiling point, preventing vapor lock formation under high-temperature conditions; 3. It undergoes minimal quality changes, avoiding corrosion or deterioration of metal and rubber components. The replacement procedure for brake fluid is as follows: 1. Park the vehicle on level ground, turn off the engine, open the hood, and drain the fluid from the reservoir; 2. Use a funnel to refill the master cylinder with new brake fluid; 3. Jack up the vehicle and begin by removing the rear wheels; 4. Remove the rubber dust caps from the brake calipers; 5. Loosen the bleeder screws with a wrench, attach a rubber hose, and connect it to a drain bottle; 6. Have someone press the brake pedal inside the vehicle while monitoring the fluid drainage until the reservoir level in the engine compartment reaches the minimum mark.