When Should Brake Fluid Be Replaced?

[StElizabeth]

Brake fluid should be replaced when it appears dirty, turns black, or the brakes feel spongy. The replacement method is as follows: 1. Lift the vehicle using a lift; 2. Remove the dust cap from the oil port; 3. Attach both ends of the hose to the oil drain port and the collection bottle; 4. Loosen the drain screw with a wrench while pressing the brake pedal; 5. Add brake fluid as the level drops until all the old fluid is drained; 6. Tighten the drain screw and check the brake fluid reservoir level. The working principle of brake fluid is based on the incompressible nature of liquids. In a sealed container or a pipeline filled with liquid, when pressure is applied, the liquid quickly and uniformly transmits the pressure to all parts of the liquid. Its functions include transmitting energy, dissipating heat, preventing corrosion and rust, and providing lubrication.