How Many Liters of Brake Fluid Are Needed for a Single Replacement?
2 Answers
Generally, only 1L of brake fluid is needed for a car's brake fluid replacement. During replacement, it is essential to use brake fluid of the same grade as the original. The brake fluid grade is indicated on the brake fluid cap. For example, if the original fluid is DOT4, only DOT4 should be used. Additionally, attention should be paid to the replacement interval, which varies depending on different climatic conditions. Relevant information about automotive brake fluid is as follows: 1. Automotive brake fluid is the liquid used in hydraulic brake systems. It must be chemically inert, unaffected by high temperatures, and should not cause corrosion, softening, or swelling to metals and rubber. Commonly used types include DOT3, DOT4, and DOT5. 2. Do not mix different types or brands of brake fluid. For brake systems with special requirements, a specific brand of brake fluid should be used. Since different brands and types of brake fluid have different formulations, mixing them can lead to a decline in the performance indicators of the brake fluid.
Speaking of brake fluid replacement, I just had my car serviced. The mechanic told me it usually takes about 1 liter, but the exact amount depends on the vehicle model and bleeding method. For regular family cars like mine, 0.8 liters is enough with the gravity method, while ABS-equipped models require at least 1 liter. Last time I saw the mechanic using a machine for circulation replacement, it took a full 1.5 liters to completely flush out the old fluid. The key point is that new fluid should be honey-clear in color - if the old fluid turns black, it must be replaced immediately, never try to make do. The recommended replacement interval is every two years or 40,000 km, and even sooner in humid areas. The mechanic said if you find moisture when opening the reservoir cap, replace it immediately - too much water content makes brakes feel spongy and is especially dangerous during emergency stops.
