How many years can the original car brake fluid last? How many years does a car brake fluid change?

As we all know, with the continuous development of China's social economy in recent years, people's consumption level has gradually improved, and more and more families have their own private cars. But as the saying goes: it is easy to buy a car and it is difficult to maintain a car, after buying a car, you not only need to maintain, clean and maintain every once in a while, but also some places that we usually do not pay attention to can not be ignored, for example, many car friends must have paid attention to or thought about a question, that is, how many years can the brake fluid of the original car be used?

Generally speaking, when we buy a car, the original car will bring its own brake oil, the normal brake fluid color is clear and translucent, there is no impurities in it, at this time we can drive with confidence, but after a long time, it is difficult to ensure that the brake fluid will not have problems and needs to be replaced. However, it is actually difficult to say the specific service life of the original car brake fluid, because everyone's driving habits, itinerary and external environment are different, and it is difficult to come up with a specific age standard to stipulate how many years the brake fluid of the original car can be used, but we can often check the brake fluid and judge whether the brake fluid needs to be replaced from the following two aspects.

1. Color and state changes; This is the easiest way to judge the current bad brake oil, just now we said that the normal brake fluid color is clear and translucent, the overall bright yellow or transparent color, and there are no impurities in it, if the color of the brake fluid has changed from clear to dull, the color is darker than before, and there are a lot of impurities floating in it, in this case, it means that the quality of the brake fluid of the original car has been worrying, and it needs to be replaced in time.

Second, test the water content of the brake oil, which is usually difficult to observe with the naked eye, but we can use the special water content detection pen of the brake oil to detect the brake oil, if the detection of the vehicle's brake oil moisture content is between 1%-2%, then the brake fluid can be used normally, but if the water content in the brake fluid has exceeded 3%, then do not continue to use, the brake fluid should be replaced immediately. This is because the moisture in the brake fluid is easily evaporated into a gaseous state when the engine is working, which seems to be harmless but is actually very dangerous, because it will make the car's braking function react longer, or simply make the car's brake directly fail, which is undoubtedly very dangerous during driving.

What is the original brake fluid change interval? Know this parameter to avoid being pitted.

Can be used for 3-5 years. Generally, after this time period, the brake fluid needs to be replaced, otherwise it does not need to be replaced.

Generally, the brake fluid of the original car can be used for two years or 40,000 kilometers. When it comes to a certain time or kilometers, we must change the brake fluid of the car in time to avoid unnecessary traffic accidents.

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.

The brake fluid of the original car can be used all the time. If you find that the brakes are not very sensitive, or the brakes are a bit hard. That's when it's time to change the brake fluid.

It is recommended to replace it once every 2 years.

Normally, the replacement cycle of brake fluid is 2 years and 40,000 kilometers, but this is under normal circumstances, but this rule is also a bit too rigid! Even if the brake fluid reaches the standard of 2 years and 40,000 kilometers, it does not mean that it must be replaced, and the key depends on the core data "water content".

Because each car is in a different environment, and the degree of driving is not the same, so in general, two years or 40,000 kilometers to change the brake fluid practice, basically not very reliable, the correct way is to use the detection tool for testing, this detection tool is also quite cheap, as long as it costs dozens of dollars.

Car brake fluid precautions:

1. If gasoline, diesel or engine oil is accidentally mixed into the braking system using synthetic brake fluid, the braking effect will also be reduced due to the incompatibility between the oils.

2. 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, so it is necessary to pay attention to timely replacement.

3. Vehicles equipped with brake fluid level alarm devices should observe whether the alarm indicator light is shining at any time, whether the performance of the alarm sensor is good, and when the brake fluid is insufficient, it should be added in time, and the stored brake fluid should be kept between the lowest capacity scale and the highest capacity scale of the calibration.

4. In the normal driving of the vehicle, if the brake is light and heavy, the brake oil should be replaced in time, and the brake system should be cleaned with alcohol before replacement.

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 maintenance cycle of brake fluid is different from the official maintenance interval of each brand of car, which is related to the brand of brake fluid and the model.

Brake fluid has a certain corrosiveness, water absorption is also relatively strong, many repair stations have a special tool to detect the moisture content of brake fluid, 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.

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. Therefore, for driving safety, the brake fluid must be changed regularly.

1. Brake oil is generally replaced once every 1-2 years, but also according to the climate of the location, brake oil has a major feature is moisture absorption, moisture absorption is very easy to be the brake oil contains water, water exceeding the standard can lead to brake failure.

2. After the brake oil has been used for a long time, the leather bowl and piston in the brake pump will be worn, causing the brake fluid to be turbid, so it is best to replace it. Brake fluid is very important, the choice of brake fluid is to pay attention to, if it is unqualified live quality general brake oil, it will rot the leather plug of the brake oil pump, and it will also have an impact on the brake effect, so if the brake fluid is missing, it is best to go to the repair shop to buy the brake fluid of the original car, do not spend a lot of money to save a small amount of money. The original brake fluid works well and can also extend the life of the brake system.

Pay attention to 5 points when using brake fluid.

1. Do not mix different types and brands of brake fluid. Due to the different formulations, mixing brake fluids will cause the brake oil to deteriorate.

2. When the brake oil 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 particularly important due to the generally humid weather in southern China.

3. 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.

4. During the normal driving of the vehicle, if the brake is light or heavy, the brake fluid should be replaced in time, and the brake system should be cleaned with alcohol before replacement.

5. When the vehicle brakes deviate, the braking system should be comprehensively checked. If it is found that the leather bowl of the sub-pump is too inflated, it means that there may be a problem with the quality of the brake fluid. At this time, you should choose a better quality brake fluid to replace, and replace the leather bowl at the same time.

Brake fluid is a liquid medium that transmits braking pressure in a hydraulic braking system. Also known as brake fluid or force-oil, its English name is brake fluid, which is an indispensable part of braking system.

Used in vehicles with hydraulic braking system, its braking working pressure is generally 2MPa, up to 4 5MPa. All liquids are incompressible, and when the liquid is under pressure in a sealed container or in a line filled with liquid, the pressure is transmitted quickly and evenly to all parts of the liquid. Hydraulic brakes work using this principle.

In the braking system, it acts as a medium for force transmission, because the liquid cannot be compressed, so the pressure output from the master cylinder is transmitted directly to the sub-cylinder through the brake fluid.

Change your brake fluid every two years.

Brake fluid is critical, and it's better to change it regularly. When your car is being serviced and the oil is changing, it is best to change the brake fluid by the way;

Generally speaking, brake fluid can be divided into alcohol-type brake fluid, mineral oil brake fluid and synthetic brake fluid according to its different raw materials, process and use requirements, among which synthetic brake fluid has the advantages of low condensation point, high boiling point, not easy to produce gas resistance, anti-corrosion, etc., and is widely used in high-speed, large-load automobiles.

The typical brake fluid change interval is two years.

Brake fluid has been used for a long time, although it does not have much impact on the surface, but when the vehicle is in emergency braking or driving downhill for a long time, the problem is easy to appear. The braking system will cause the temperature of the brake fluid to rise rapidly during long-term or emergency braking. The brake fluid itself has strong water absorption characteristics, it will absorb the moisture in the surrounding air, such as car washing, humid air, etc., there will be moisture penetration, and the accumulated moisture into the brake fluid will directly cause the boiling point of the brake oil to drop, so that the braking force will decrease.

At the same time, it will cause air resistance in the brake line, which will affect the performance of the brakes. In addition, moisture can also corrode the brake line, causing damage to the internal valves of the anti-lock braking (ABS) hydraulic assembly, which seriously affects the transmission response of the brakes.

How often should car brake fluid be changed?

In principle, it should be replaced in 2 years or 40,000 kilometers, because the longer the brake fluid is used, the higher the moisture content, which will lead to potential safety hazards. Therefore, it is generally safe to replace it according to the 2-year or 40,000-kilometer cycle. It can also be subject to the results of the moisture content tester test.

Change brake fluid, antifreeze every two years. Because the brake fluid will be worn out after a long time, the leather bowl and piston in the brake pump will be worn, causing the brake fluid to be turbid, so it is best to replace it.

Generally, it is changed every two years.

If the use conditions are not bad, it can also be used for a longer time.

In other words, the main focus is on the dot value.

It is best to choose a brake fluid of Mobil or Castrol, BP Shell or other brands with dot-5 or above.

Two years. The characteristics of brake fluid (brake fluid) are that it is easily soluble in water, and the air contains water molecules, although our brake lines are sealed, but they are still easy to be polluted by water in the air for a long time.

When the vehicle has been driving normally for 40,000 kilometers or the car brake fluid has been used continuously for more than 2 years, it needs to be replaced in time. If the owner brakes a lot when using the car daily, the driving environment is relatively harsh, and the brake fluid needs to be changed flexibly.

Attached: Brake fluid replacement reference:

1. In the process of driving, if there is emergency braking or continuous braking, the brake indicator will alarm or flash, but the frequency is intermittent, which may be caused by the lack of brake fluid, and it needs to be checked and replaced in time.

2. During emergency braking, the braking distance is significantly longer than before, in addition to the factors of excluding brake pads, it may be caused by brake oil, and it is recommended that the owner solve it in time to avoid problems when braking.

3. When stepping on the brake pedal, if there is a feeling of softness and weakness, it may be caused by the deterioration of the brake oil, especially when the brake is stepped on continuously or frequently, the feeling of stepping on the brake is much softer than before, and it is elastic, which needs to be dealt with in time.

4. When there is a feeling of light and heavy when braking, it is also caused by the deterioration of the brake oil, and the excessive moisture in the brake oil leads to high temperature during braking, which turns the water in the brake fluid into water vapor, and there may be instability during braking.

Precautions for the use of brake fluid:

1. 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.

2. If the brake fluid inhales water or other impurities, the filter should be replaced in time to avoid insufficient braking force during braking and affecting the braking effect.

3. In the process of driving, if there is a 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, and the brake oil and the bowl need to be replaced in time to ensure the normal use of the brake system.

Brake fluid. Also known as brake fluid.

If you use it in good working conditions for three to five years, there is no problem. You can't change it. Because the replacement mainly depends on each person's driving habits, driving road conditions, and environment, there is no specific replacement time and mileage standard.

When you're saving money, you mostly rely on inspections. If you don't save money, you can replace it according to the suggestions of the 4S store or online noisy calendar. For example, "replace it every year, every two years, every 30000-40000 km".

Provided that you are not short of money. There is nothing wrong with replacing it, but it may be worse than before after replacement. However, this is not recommended because everything in the car has a repair cycle.

If some critical components are replaced earlier before the optimal replacement cycle, it can also affect the car. Therefore, items such as oil should be changed at the best time to change.

Many friends will ask, how to know the best time to change the brake fluid? The first thing we need to know is that brake fluid is very important to the safety performance of the vehicle, so it is understandable that some riders change the brake fluid in advance. After all, life safety is paramount.

Money is extrinsic, but this is only for those who do not know about cars. Because if you know the car, you will know when it is time to replace the braking system.

parts, the vehicle will have early signs. Prove that the brake fluid can be changed immediately if: Modification.

Weak brakes. Weak links in the braking process are usually caused by pressure loss in the pipes that provide pressure to the braking system. Once this situation occurs during driving, you should immediately go to the repair shop to check the braking system to see if you need to change the brake oil; Press the rear brake pedal.

No return or slow return. Usually, the reason for this is that the vehicle was made due to an oil leak or it may be a malfunction, but the probability of oil shortages and leaks will be higher. Of course, the specific reasons need to be verified.

If this is the case, it must be checked at the first opportunity. The brake pedal becomes stiff or soft. Every driver knows that the brake pedal is very hard when parking, because the vacuum booster pump has not yet started working at this time, but if this happens while driving, it must be a vacuum tube.

or the problem with vacuum pumps. Now we need to check it right away. Another reason is that the brake is soft, and most of the reason for the soft is that the brake is leaking oil, which must be replenished or replaced in time.