What is brake fluid and what is brake fluid?

Updated on Car 2024-03-18
14 answers
  1. Anonymous users2024-02-06

    Three kinds. They are castor oil-alcohol type, synthetic type, and mineral oil type.

    1. Castor oil-alcohol type: It is made of 45%-55% refined castor oil and 55%-45% low carbon alcohol (ethanol or butanol), and is precipitated to obtain a colorless or light yellow clear and transparent liquid, that is, alcohol-type automobile brake fluid. Castor oil plus ethanol is alcohol type No. 1, and castor oil plus butanol is alcohol type No. 3.

    The raw materials of alcohol-type brake fluid are easy to obtain, the synthesis process is simple, and the product has good lubricity; The disadvantage is that the boiling point is low and the properties are unstable at low temperatures. Ethanol vapor appears above 45 °C in alcohol type 1, resulting in gas resistance; At -25 °C, castor oil precipitates as a milky white gelatinous substance, and increases with the decrease of temperature, blocking the braking system and making the braking system fail heavily.

    2. Synthetic type: made of ether, alcohol, ester and other additives mixed with lubrication, anti-oxidation, anti-rust, anti-rubber swelling and other additives.

    3. Mineral oil type: made by adding thickeners and other additives to the refined light diesel oil fraction.

  2. Anonymous users2024-02-05

    Don't mislead people on the 1st floor, don't confuse the brake fluid brand with the brake fluid model!

    Brake fluid is brake fluid, under normal circumstances, 2 years or 20,000 kilometers to change once, now basically choose DOT-4 type, the domestic brake fluid comprehensive index is higher than imported products, because the Chinese standard GB12981-2003, is higher than the United States, Japan's standards, embodied in the evaporation loss! Eternal life, Lake, the Great Wall can be.

  3. Anonymous users2024-02-04

    Hello, brake fluid is what we often call brake fluid.

  4. Anonymous users2024-02-03

    Brake fluid is brake fluid.

    The brake fluid and brake pads are separated, and the brake pad position is at the wheel and the brake fluid position is in the engine compartment.

  5. Anonymous users2024-02-02

    Brake fluid is brake fluid.

  6. Anonymous users2024-02-01

    It is the liquid that transmits the force when braking, and the brake pads are separated and replaced separately.

  7. Anonymous users2024-01-31

    It is independent of the brake fluid that is used to transmit power in the hydraulic braking system.

    The inside of your brake pedal is passed through the tower.

  8. Anonymous users2024-01-30

    Brake fluid, also known as brake fluid or brake fluid, its English name is brake fluid, which is a liquid medium commonly used in automobile braking systems, which is directly related to the braking performance of automobiles. It can be divided into silicone-containing brake fluid and silicone-free brake fluid.

    As the only medium to transmit the braking force in the braking system, it plays a very important role. Brake fluid can not only transfer energy and stop the rotation of wheels, but also prevent corrosion, rust and lubrication, which can be said to be a highly functional liquid.

    Because the brake fluid has the characteristics of water absorption, in use, there will be some water and impurities into the brake fluid of the car, resulting in the water content of the brake fluid will continue to increase, after too much water, the water in the brake fluid is converted into water vapor due to high temperature, and the water vapor will be compressed in the braking system, which leads to a great decrease in braking force, with the continuous increase of water volume, the brake fluid will slowly decrease, which will eventually affect the effect of braking and bring hidden dangers to the safety of driving.

    Therefore, it is necessary to check and change the brake fluid regularly. In general, it is recommended that the brake fluid replacement interval is 40,000 kilometers or more than 24 months.

    Due to the different formulations, different brands or different types of brake fluids cannot be mixed, and if they are mixed, they will cause a decrease in braking performance. For the type of brake fluid, please refer to the maintenance manual of the car and choose the type of brake fluid that matches the type to use.

  9. Anonymous users2024-01-29

    Hello dear<> I'm glad to answer for you. Brake fluid is brake fluid or brake fluid. There are three types of brake fluid, choose a reliable manufacturer when buying, and the sooner you upgrade, the better.

    The braking pressure is usually 4 5MPa, and the mental pressure is very high. All liquids have the property of being incompressible, and in a sealed container or a pipe filled with liquid, a part of the liquid moves at a constant velocity when the liquid is under pressure. Hydraulic brakes use this principle in their work.

    Brake fluid is a liquid medium that transmits braking pressure in a hydraulic braking system, and is used in vehicles that use hydraulic braking systems. The fluid used to make the brake is an integral part of the brake, because the liquid cannot be compressed, so the brake is used as a means of transmitting power, thus transmitting the pressure outside the pump. In general, the auxiliary pump is fed directly through the brake fluid.

    Hydraulic brake fluid is a practical fluid used in hydraulic braking systems to transfer pressure to stop the wheels from turning. Conventional brake fluids are glycol-based hydraulic transmission fluids. The biggest disadvantage of glycol brake fluid is that it absorbs water easily, thus reducing the boiling point.

    When braking quickly, the high temperature generated by braking can cause the mixture of water and glycol to boil, resulting in air lock-up and attenuation of brake fluid storage. In addition, glycol brake fluid can corrode the paint surface when it absorbs water. Kiss <>

    The above is my answer to this question, if you think I am very satisfied, please pay attention to me and not get lost in the future, and then please do a little manual in the lower left corner, give me a like! Welcome to consult again <>

  10. Anonymous users2024-01-28

    Summary. Hello dear, <>

    The main component of <> brake fluid is ethylene glycol or propylene glycol, and contains additives such as chloride, nitric acid, boric acid, etc. Brake fluid can be heated by hot water or gasoline vapors in the radiator without boiling. It also has the characteristics of high boiling point and low condensation point, which can ensure the stability of the braking system in harsh environments.

    Different types of brake fluid have different DOT grade notations. There are usually dot3, dot4, dot5, and so on. DOT3 and DOT4 grades of brake fluid are the most common and are suitable for most vehicles.

    Whereas, DOT5 and grade brake fluids are mainly used in some high-performance cars. It is important to note that brake fluid absorbs water from the air, and over time, the moisture content of brake fluid gradually increases, and too much water in the system can lead to bubbles and corrosion. or lead to a weakening of braking force.

    Therefore, it is recommended to change the brake fluid every two years or 20,000 kilometers.

    What is brake fluid.

    Hello dear, <>

    <> brake fluid is a fluid used in the automotive braking system, which uses the hall potato to transfer pressure to the brakes, thereby braking the wheels. Brake fluid is usually a colorless or yellowish fluid that consists of a variety of additives. The main purpose of using brake fluid is to prevent phenomena such as corrosion, oxidation, zeolite rotation and freezing of the automobile brake system.

    Hello dear, <>

    The main component of <> brake fluid is ethylene glycol or propylene glycol, and contains additives such as chloride, nitric acid, boric acid, etc. The brake fluid can be heated by the hot water in the radiator or the head of the gasoline steam shed without boiling. It also has the characteristics of high boiling point and low condensation point, which can ensure the stability of the braking system in harsh environments.

    Different types of brake fluid have different DOT grade notations. There are usually dot3, dot4, dot5, and so on. Brake fluids in the DOT3 and DOT4 grades are the most common and are suitable for most vehicles.

    Whereas, DOT5 and grade brake fluids are mainly used in some high-performance cars. It is important to note that brake fluid absorbs water from the air, and over time, the moisture content of brake fluid gradually increases, and too much water in the system can lead to bubbles and corrosion. or lead to a weakening of braking force.

    Therefore, it is recommended to change the brake fluid every two years or 20,000 kilometers.

  11. Anonymous users2024-01-27

    Brake fluid is a liquid medium that transmits braking pressure in a hydraulic braking system and is used in vehicles with hydraulic braking systems.

    Brake fluid, also known as brake fluid or force oil, its English name is brake fluid, which is an indispensable part of braking system, and in the braking system, it is used as a force transmission medium, because the liquid cannot be compressed, so the pressure output from the master cylinder will be directly transmitted to the sub-cylinder through the brake fluid.

    Automobile braking mode is divided into two forms: oil brake and air brake, oil brake system, compact structure, small size, large and uniform braking torque, sensitive and rapid braking, low energy consumption, can prolong the service life of tires, not only widely used in small cars, but also widely used in heavy-duty trucks.

    The role of brake fluid

    Brake fluid made of refined diesel fraction thickener and antioxidant, there are three types of mineral oil brake fluid, alcohol brake fluid and synthetic brake fluid, choose a reliable manufacturer when purchasing, and the higher the level, the better, its brake working pressure is generally 2MPa, as high as 4 5MPa.

    All liquids are incompressible, and when the liquid is under pressure in a sealed container or in a liquid-filled line, it conducts the pressure quickly and evenly to all parts of the liquid, and hydraulic brakes work using this principle. High-quality brake fluid not only ensures that the vehicle is not damaged, but also ensures the personal safety of drivers and passengers in case of emergency, while low-quality brake fluid is called "traffic killer".

  12. Anonymous users2024-01-26

    Summary. Brake fluid is a fluid used in the braking system of automobiles and mechanical equipment. Its main function is to transfer the pressure on the brake pedal to the brakes on the wheels, causing the vehicle to stop or slow down.

    Brake fluid is usually a liquid made up of a mixture of chemicals with properties such as high boiling point, low freezing point, good lubricity, and non-susceptibility to moisture absorption. Common brake fluids are dot 3, dot 4, dot 5, etc.

    Brake fluid is the hydraulic medium of the automobile braking system, which is used to transmit the brake pressure, because this high liquid cannot be compressed, so the pressure output from the master cylinder will be directly transmitted to the driven cylinder through the brake fluid. Brake fluid has four functions: energy transfer, heat dissipation, anti-corrosion and anti-rust, and lubrication, and is divided into silicon-containing brake fluid and silicone-free brake fluid.

    Brake fluid is a fluid used in the brake cavity handcar system of automobiles and mechanical equipment. Its main function is to transfer the pressure on the brake pedal to the brake circlers on the wheels, thereby causing the vehicle to stop or slow down. Brake fluid is usually a liquid mixed with a variety of chemicals, which has characteristics such as high boiling point, low freezing point, good lubricity and unfilial piety and easy moisture absorption.

    Common brake fluids are dot 3, dot 4, dot 5, etc.

  13. Anonymous users2024-01-25

    Brake fluid, also known as brake fluid or brake fluid, is a liquid medium commonly used in automobile braking systems, which is directly related to the braking performance of automobiles. It can be divided into silicone-containing and silicone-free brake fluids and is used in vehicles with hydraulic braking systems. Brake fluid: An indispensable part of braking in the braking system.

    Classification and standard requirements for brake fluids

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

    Quality brake fluids should meet DOT3 and DOT4 standards, which are internationally recognized standards for brake fluids. China's Ministry of Communications and the Ministry of Public Security formulated JG3 and JG4 standards, which are also formulated with reference to American standards.

    The domestic production of brake fluid has been using alcohol brake fluid before the 80s, the disadvantage of this brake fluid is that the boiling point is low, high temperature driving is prone to air resistance, low temperature performance is poor, such as in the northern region of our country below minus 25 degrees will appear white crystals, can not meet the needs of vehicle use, temperature application range is small.

  14. Anonymous users2024-01-24

    Brake fluid is a liquid medium that transmits braking pressure in the hydraulic braking system, and is used in vehicles with hydraulic braking systems. Brake fluid brake system is an indispensable part of braking, it is used as a force transmission medium, because the liquid cannot be compressed, so the pressure output from the master cylinder will be directly transmitted to the sub-cylinder through the brake fluid.

    Hydraulic brake (brake) fluid is a functional fluid used in hydraulic braking systems to transfer pressure to stop wheel rotation. Pay attention to the choice of brake fluid:

    First, because the seal in the brake system is a rubber leather wrist, long-term immersion in the brake fluid will undergo chemical changes, causing the leather wrist to expand or contract, thereby affecting the braking performance, so the brake fluid with good compatibility with rubber should be selected.

    Second, the high-temperature performance, that is, the ability of the brake fluid to resist air resistance at high temperatures, is examined by the index of "balanced return point". The higher the equilibrium return point of a brake fluid, the better its high-temperature performance and the higher its quality level.

    Third, the low-temperature performance of the brake fluid, that is, the fluidity of the brake fluid at low temperature, is examined by the kinematic viscosity of the brake fluid at 40 hours. If the viscosity of the brake fluid is too high at this temperature, the transmission of braking force will be affected.

    Fourth, because many parts in the automobile braking system are metal materials, a good brake fluid should be added with various anti-corrosion additives, so as to prevent the braking system from being corroded. (Photo by Chen Miaoling of Pacific Automobile Network).

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