How Often Should Brake Fluid Be Changed in an Automatic Transmission Car?
4 Answers
Generally, brake fluid should be replaced every 2 years or every 40,000 kilometers driven, but the specific interval should be determined by the cycle specified in the car's user manual. Below is some information about brake fluid: 1. Introduction: Brake fluid, also known as hydraulic brake fluid or braking fluid, is a type of hydraulic fluid used in hydraulic brake systems. It is made from refined diesel distillate with thickeners and antioxidants added. There are three types of brake fluid: mineral oil brake fluid, alcohol-based brake fluid, and synthetic brake fluid. 2. Precautions: Do not mix different types or brands of brake fluid. Due to differences in formulations, mixing brake fluids can lead to a decline in the performance indicators of the brake fluid.
As a car enthusiast, when I first started driving an automatic transmission car, I didn't pay attention to brake fluid replacement. As a result, after two years, the braking distance became longer and I almost rear-ended another car. The mechanic told me that when brake fluid absorbs moisture, its boiling point decreases, increasing the risk of brake failure during emergencies. It's recommended to change it every 2 years or 40,000 kilometers, regardless of whether it's a manual or automatic transmission. Regular inspections not only prevent accidents but also extend the lifespan of the braking system, saving on replacement parts costs. I've learned to remind the shop during maintenance to check the moisture tester, and to address any readings that exceed the standard promptly. Now, I drive with much more peace of mind.
Having repaired cars for many years, I've encountered numerous failures caused by deteriorated brake fluid. Degraded fluid quality can lead to corrosion of brake cylinders and pipeline blockages, affecting the entire system. Both automatic and manual transmission vehicles should have their brake fluid replaced approximately every 24 months or 40,000 kilometers. The actual procedure is quite simple: first use diagnostic tools to measure water content - if it exceeds 3%, new fluid must be replaced. This concerns daily safety, so don't wait for problems to arise before addressing it. I recommend car owners periodically visit professional shops for comprehensive inspections, and avoid humid environments that accelerate fluid degradation.
When I first started driving, I knew nothing about maintenance except changing the engine oil. Once, while driving an automatic transmission car downhill, the brakes suddenly felt spongy, and I later learned that the brake fluid needed to be replaced. The mechanic taught me that brake fluid has strong hygroscopic properties and can easily degrade with prolonged use. The standard for all vehicle models is similar: replace it every two years or so, or when the mileage reaches 40,000 kilometers. It's best to develop a habit of checking the color change every six months; if it turns from clear to cloudy, it's time for a replacement. This is a fundamental aspect of driving safety.
