Can Brake Fluid Still Be Replaced After 100,000 Kilometers Without Replacement?
2 Answers
Brake fluid can still be replaced after 100,000 kilometers without replacement, but it is recommended to replace it every two years or 40,000 kilometers. The replacement interval for car brake fluid is not fixed. If the driver frequently uses the brakes or often performs emergency braking during daily driving, the replacement cycle for brake fluid may be shorter. Therefore, it is necessary to regularly inspect the brake fluid during daily driving. The role of brake fluid: Brake fluid, also known as hydraulic brake fluid. When the brake pedal is pressed, the energy from stepping on the pedal is transmitted by the piston rod of the master cylinder through the brake fluid to the wheel cylinders at each wheel, expanding the brake pads to make contact with the brake discs, thereby achieving the purpose of braking. When the brake pedal is released, the hydraulic pressure disappears, and the brake pads return to their original positions. Brake fluid plays the role of force transmission throughout this entire process. When brake fluid needs to be replaced: Brake fluid should be replaced promptly when it becomes deteriorated, contaminated, or contains excessive moisture. Brake fluid has the characteristic of absorbing moisture, meaning that once the moisture content in the brake fluid is too high, the brake fluid can easily deteriorate and produce excessive gas. The simplest method is to purchase a brake fluid test pen. If the test shows that the moisture content in the brake fluid exceeds 3%, it is time to replace the brake fluid. Precautions for using brake fluid: Do not mix different models or brands of brake fluid, as each manufacturer has different formulations, and mixing may lead to a decline in the performance of the brake fluid. In humid areas, timely testing and replacement are necessary, and the replacement cycle should be shortened.
Absolutely, you should change it. Changing brake fluid is like regular exercise – delaying too long can cause hidden dangers, but it's still better than doing nothing. The biggest issue with brake fluid is that it absorbs moisture from the air. Over time, it becomes like a water-soaked sponge, lowering its boiling point. If you haven't changed it in 100,000 kilometers, the moisture content is definitely excessive. Especially when going downhill or during emergency braking, the brakes might feel spongy and fail – how dangerous is that! A friend of mine almost had an accident because of this. My advice: don't delay, find a reliable repair shop immediately to thoroughly flush the entire system and replace it with new fluid. The cost isn't high, usually around 100 to 200 yuan. Don't risk road safety to save such a small amount of money – safety comes first.
