How often should I change my brake fluid?

Normally, the replacement cycle of brake fluid is 2-3 years (4-60,000 kilometers), but in actual use, we still have to conduct regular inspections according to the use environment and maintenance manual recommendation information to see whether the brake fluid is oxidized, deteriorated, etc., most of the 4S shops will check the brake fluid when we carry out maintenance, and consumers only need to carry out regular vehicle maintenance.

Generally, it is recommended to change the brake fluid every 2 years, but this cycle can be longer or shorter depending on the usage. The replacement cycle of brake oil, the official maintenance cycle of each brand of car is different, which is related to the brand and model of brake oil, brake fluid has a certain corrosiveness, water absorption is also relatively strong, now many repair stations have special tools to detect the moisture content of brake oil, you can do a test to see if it needs to be replaced. The brake fluid must be replaced regularly when it is time for maintenance, and it is best to refer to the maintenance cycle specified by the manufacturer for maintenance.

Brake fluid has the characteristics of water absorption, if not replaced for a long time, it will corrode the braking system and bring hidden dangers to driving. At the same time, because the boiling point of the brake oil will decrease after absorbing water, it is easy to cause insufficient braking pressure and affect the braking effect. Under normal circumstances, it is recommended that car owners change the brake fluid once every two years or 40,000 kilometers.

The presence of moisture in the brake fluid will affect the braking performance. The boiling point of water is 100, and if the brake fluid contains water, it will reduce the boiling point temperature of the brake fluid.

Brake fluid is generally changed every 4-60,000 kilometers or every two years. To determine whether the brake fluid needs to be replaced, it is necessary to use a professional instrument to test the moisture content of the brake fluid. When the measurement result exceeds 3 percent, it is a reminder that it is time to change the brake fluid.

More than five percent must be replaced as soon as possible, because the boiling point at this time is already quite low, which directly affects the braking effect of the car.

If you care about driving and very often, you can change it once every two years, basically not frequently, I have driven 700,000 kilometers in Xiali for more than 900 years without changing the brake fluid.

Take a look at your car manual, which is written, this is generally checked as long as it is not off the assembly line, of course, this is a few years before the new car, it is best to change it every 5 years or 30,000 kilometers!

It is recommended to replace the brake fluid of Ou Neng lubricating oil every 2 years or 140,000 kilometers.

Depending on how often you use it, the car can generally be changed once in about half a year.

The brake fluid does not need to be changed at all, don't be fooled by 4s, this is because the brake fluid replacement cycle is very long. The brake fluid replacement interval is 2 years or 40,000 km, but it still depends on the cycle specified in the user manual.

Of course, the replacement cycle is just to give us a reference, if you want to know whether the brake fluid needs to be replaced, you have to check the moisture content of the brake oil, too much water content will directly affect the dry and wet boiling point, which will affect the performance of the brake oil, and need to be replaced in time.

And different types of different brands of brake fluid can not be mixed, due to different formulas of brake fluid additives or different indicators of brake fluid, there will be different effects when used. If the brake fluid inhales water or other impurities, the filter should be replaced in time to avoid insufficient braking force during braking, which will affect the braking effect.

In the process of driving, if there is a situation of brake deviation, it is recommended that the owner of the car brake system for a comprehensive inspection, if it is found that the brake cylinder bowl is too expanded, it means that there may be a problem with the quality of the brake oil.

The brake fluid can be changed for 2 years or 40,000 km, which can be found in the owner's manual.

Replace it once every two years, and the brake fluid is highly absorbent.

The replacement cycle of brake fluid, the maintenance cycle of each brand of car is different, which is related to the brand of brake fluid and the model.

Generally speaking, the brake fluid replacement cycle of the car is four years, but for some vehicles that often run in the suburbs and at high speeds, the brake pressure is relatively less, so the brake fluid replacement cycle can be appropriately extended.

However, for some medium and large cars or cars that often need to stop and stop and step on the brakes due to long-term driving in the city, the brake fuel consumption of such cars is relatively fast, so the replacement cycle is relatively short. In general, no matter what type of car it is, you must always check the wear and tear of the brake fluid and replace the brake fluid according to your own situation.

If you want to replace the tan belt brake fluid, then it is generally replaced in about two years or when the car travels about 40,000 kilometers, it needs to be replaced in time, but the replacement cycle will become longer when some special circumstances occur. For example, some luxury brand models, in the driving 50,000 kilometers before the need to lift the base to replace, each car model is different, the use of different, will also affect the replacement cycle of the brake oil, you can refer to the Bao Rang Lu Yang manual, when the brake fluid needs to be replaced, driving the vehicle will also have some signs, if the owner obviously feels that the brakes become softer or the braking distance becomes longer when driving, it needs to be replaced in time, but there are professional instruments in the 4S shop, you can check whether the brake fluid needs to be replaced, When the brake fluid is detected and the water content is too high or there is a problem of oxidation and deterioration, it needs to be replaced in time.

Generally speaking, 8-100,000 replacement, usually pay attention to the loss of oil and add it in time.

01 There is no specific time for brake fluid to be used, and whether the brake fluid needs to be replaced does not depend on the time of use, but on the moisture content. When the moisture content of the brake fluid reaches 3%, it should be replaced immediately. Generally speaking, if the vehicle travels normally for 40,000 kilometers or the brake fluid is used continuously for more than 2 years, the brake fluid is easy to deteriorate due to long use, and it should be replaced in time.

Brake fluid is also called brake fluid, manufacturers generally recommend that customers change the brake fluid every 2 years, if the vehicle has traveled about 40,000 kilometers during this period, it should also be replaced. This is mainly to ensure the cleanliness of the brake oil, because the moisture in the air will seep into the air from the breathable hole of the brake oil can, thereby reducing the wet boiling point of the brake fluid and affecting the brake performance, so usually do not open the brake oil cap for a long time.

The moisture content of the brake fluid is the main cause of failure, and it is usually necessary to visit the store frequently to test the moisture content of the brake fluid when driving in a humid environment. If the test pen lights up red or the moisture content exceeds 3% during the test, please change the brake fluid in time, and do not slack off, after all, this is a safety event. When changing the brake fluid, you can also check the thickness of the brake pads, usually the replacement cycle of the brake fluid and brake pads is about the same, but it is also necessary to make a decision after testing, different environments and driving habits will have different results.

In the early stage of automobile development, the auto maintenance equipment was immature, and the vehicle replacement was carried out by constantly pressing the brake pedal to circulate oil and refueling, which was inconvenient to completely replace the brake oil. Now that the equipment is mature, many repair shops use brake fluid replacement machines. It works by injecting brake fluid into the vehicle by air pressure.

The advantages are that it is easy to operate, the replacement is thorough, and it is not easy to generate air ingress.

Generally, family cars are replaced every 40,000 kilometers or about 3 years; The cycle of changing the brake fluid is different for different models, and it is best to refer to the owner's manual.

If the area is rainy and humid, it is recommended to shorten the replacement cycle accordingly; The canopy can be opened regularly to check for lack of brake fluid, and if the brake fluid is replenished and the brake fluid is missing again not long after, you should immediately check for oil leakage.

In daily driving, if you find that the brake feel has become softer and the braking effect has deteriorated, it is very likely that the brake master cylinder has entered the gas, and you should check the brake system immediately.

In these 3 situations, it should be replaced in time

In the first case, car mechanics say that when the brakes are applied, the pedals will feel soft, especially when you need to apply the brakes on long slopes for a long time. In this case, it is usually necessary to change the brake fluid in advance.

Of course, you can also check the wear of the brake pads at the same time. If the brake pads are too thin, you will feel weak when you apply the brakes. But no matter what the reason, it should be paid enough attention by the car owner, and it is best to replace it in advance.

In the second case, the speed of the vehicle is about 50 kilometers per hour, and the braking distance during emergency braking is significantly longer. In this case, be aware of this.

The brake fluid may have deteriorated and needs to be replaced. Auto mechanics say that longer braking distances can also be caused by problems with brake discs or brake pads. By the way, when checking the brake fluid, check these two attachments.

If there is no problem with the rear brake disc and brake lining after checking, the brake fluid needs to be replaced.

The third situation is that when you apply the brakes, it feels very light and heavy, which is difficult to control. Especially when you apply the brakes lightly, you will hardly feel the speed drop. Applying the brakes deeply can also give the impression that the brakes are not very reliable and unstable.

Car mechanics suggest that this situation is an indication that the water content in the brake fluid may have been exceeded and that the water content is too high.

Frequent braking converts the water vapor in the brake fluid into water vapor due to high temperatures, and a large amount of water remains in the brake fluid. Air bubbles can cause the brakes to be unstable and difficult to control. In this case, the brake fluid should also be replaced in a timely manner.

Brake fluid, also known as automobile brake fluid, was used in early automobiles to use drum brakes for mechanical braking. With the development of hydraulic technology, safe and reliable hydraulic brake systems are widely used in automobiles. Brake oil in the car brake system plays a transmission role, we step on the brake pedal with our feet, through the assistance of the vacuum booster, push the brake master cylinder, the brake master cylinder pushes the brake oil, the power under the feet through the brake oil to the brake cylinder to which the four wheels belong, the brake cylinder pushes the brake pads, and the brake pads squeeze the brake disc to form a braking force.

If the brake fluid is not changed in time, it will cause the brake fluid to be turbid, the boiling point will drop, and the effect will deteriorate, resulting in brake failure! Because the brake fluid system will always be worn, and the low-end brake fluid impurities will lead to the brake pump accelerated wear and brake system oil blockage, expired brake oil brake effect is not ideal, just because the owner has been adapting to his vehicle for a long time, so it is not noticed. In order to drive safely, it is recommended to replace it immediately.

Now basically in the maintenance manual of every vehicle, you will be told that the brake fluid has a number of kilometers to change, basically at 40,000 kilometers or should be replaced in two years.

Car brake fluid is changed every 3 to 50,000 kilometers or about 2 years.

The process of brake fluid is not complicated, but it works very well and can help the car's braking system to achieve good operation for a long time. Therefore, if there is a problem with the brake fluid, then the brake system will also have a big problem, so the state has set a relatively high standard for the brake fluid on the market to ensure that it can reduce the traffic accidents caused by it.

Brake fluid is highly absorbent, and when used, it absorbs moisture from the air. After a long period of use, the brake fluid is diluted because it absorbs a lot of moisture from the air. Naturally, after being diluted, the effect of the brake fluid will be reduced or even completely lost, which will lead to traffic accidents.

The brake fluid reservoir is equipped with a vent, and the air sucked in from the hole contains moisture or impurities, and the water will be absorbed or dissolved by the brake fluid, so the boiling point of the brake fluid containing water will be reduced. When the car is driven and braked for a long time, the temperature of the braking system rises, the brake line is easy to produce air resistance, and the air is compressed, resulting in the possibility of a decrease in braking force or brake failure.

Do not mix different types and brands of brake fluid, and add specific grades of brake fluid to braking systems with special requirements. Due to the different brands and different types of brake fluid formulations, mixing brake fluids can cause a decrease in brake oil properties. Even those brands that are better miscible and indicate that they can be mixed or substituted are not satisfactory in use, so do not use them for a long time.

The above content reference: Encyclopedia - Automobile brake fluid.

Generally, the brake fluid requires 2-40,000 kilometers to be replaced, which is different for different models. According to the maintenance interval of personal driving, I think it is best to change the brake fluid every 30,000 kilometers, and it is best to check it together with the brake pads, after all, the brake system is very important.

The normal replacement cycle of brake fluid is 2 years or 40,000km first, the dry climate in the north can be appropriately extended for one and a half years, but the air humidity in the south is high, and it should be replaced in time according to the cycle to ensure the safety of the car.

Brake fluid is easy to deteriorate due to long use, and the car should be replaced in time if it travels normally for 3-50,000 kilometers or the brake fluid is used continuously for more than 2 years.

In addition, when the brake fluid absorbs water or has impurities, it should be replaced or filtered in time, otherwise it will cause insufficient braking pressure and affect the braking effect. This is especially important due to the generally humid weather in the south. It is important to note that different types and brands of brake fluid should not be mixed.

Due to different formulations, mixing can cause a decrease in brake fluid performance.