Can Expired Brake Fluid Be Used?
2 Answers
No. Brake fluid has hygroscopic properties, which can lead to lowered boiling points, contamination, and varying degrees of oxidation and deterioration. Prolonged failure to replace it may corrode the braking system, creating potential driving hazards. It is recommended to replace the brake fluid every two years or 40,000 kilometers. Whenever possible, purchase products from manufacturers that consistently supply brake fluid to automotive factories to ensure reliable quality and stable performance. Professional equipment should ideally be used for replacement to achieve a more thorough process. Pay attention to braking symptoms: 1. Weak braking: This is usually caused by a loss of pressure in the transmission pipeline that provides pressure. Check for cracks or looseness at the interface between the vacuum booster hose of the brake master cylinder and the engine. 2. Brake shudder: This mostly occurs in older vehicles that have been driven for many years. Due to significant wear, the surface flatness of the brake discs has deviated to some extent. The issue can be resolved by resurfacing the brake discs or replacing them entirely.
It's best not to use expired brake fluid. After driving for so many years, I've seen too many similar issues. Brake fluid gradually absorbs moisture, and over time, its boiling point decreases, causing bubbles when you brake, making it feel like the brakes aren't working. I remember a few years ago when I used a bottle of expired fluid—I almost rear-ended someone on the highway. That feeling was terrifying. Now, I make sure to change it every two years and regularly check the color and level in the reservoir. Safety comes first. If the braking system fails, repairs can be costly and may even lead to accidents. Changing the fluid isn't expensive—usually just around a hundred bucks—but it keeps the whole family safe on the road. Never skimp on this to save a little money; if something goes wrong, regret won't help. The right approach is to find a reliable auto repair shop for regular maintenance.
