Should Brake Fluid Be Replaced?

[HenryDella]

Brake fluid needs to be replaced, and the relevant explanations are as follows: Reasons: Because when the car brakes, water molecules will be generated under the action of high temperature. In addition, brake fluid is a high-concentration liquid and has a strong adsorption capacity for water. Therefore, the water content of the brake fluid will inevitably increase over time, thereby affecting the braking effect of the car. Additional note: Regular replacement of brake fluid is very important. Generally, it should be replaced every 2 years or every 40,000 kilometers. The most direct method is usually to check the water content of the brake fluid. If it exceeds 3%, it needs to be replaced.

[McLena]

As a veteran driver with 15 years of experience, I think this issue is very important. Brake fluid indeed needs regular replacement because it has strong hygroscopic properties and absorbs moisture from the air. Over time, accumulated moisture lowers the boiling point, and when the brake fluid heats up during braking, it can cause bubbles, resulting in a spongy pedal feel. This is no small matter—I once experienced brake failure on the highway, which scared me into immediately sending the car for repairs. Generally, it's recommended to change it every two years or every 40,000 kilometers, but check your car’s manual for specifics. Don’t skimp on this small expense—safe driving comes first. During routine maintenance, I always ask the mechanic to check the fluid color; a darker color is a warning sign. The replacement isn’t complicated either—most garages can do it in about an hour, preventing bigger repair risks down the line.

[KayleeDella]

As a car enthusiast who has studied a lot about maintenance, I can confidently say that brake fluid needs to be replaced. The reason? It easily absorbs moisture, and once moisture gets in, the boiling point drops from high to low. If you brake hard, the fluid can boil, potentially causing system failure. From my personal experience, new cars might be fine for the first year or two, but after that, you need to pay attention. Not replacing it not only affects braking performance but also corrodes pipes and seals, leading to more expensive long-term damage. I often use a test pen to check moisture content—it's simple and accurate. Typically, it should be replaced every 2-4 years, depending on mileage. By the way, when getting the fluid changed, ask the technician about the overall condition of the braking system. Spending a little extra is much better than risking an accident. Remember, this is just as crucial as changing engine oil—don’t delay it.

[MacJulia]

I've been driving for over 6 years and have dealt with similar issues. Brake fluid definitely needs changing—it absorbs moisture as it ages, reducing performance. When I experienced this, the brakes felt sluggish, and later inspection revealed the fluid was too contaminated. Generally, it should be changed every 2 years or so, depending on the manual's recommendation. Just ask the repair shop during maintenance—they test for color and moisture content. The cost isn't high, just a few hundred bucks, but safety comes first. Not changing it poses significant risks, especially in rainy weather or on long trips, increasing the chance of accidents.