What are the commonly used automotive brake fluids?

There are three types of domestic automobile brake fluids, namely drunk type, mineral oil type, and synthetic type. There are two kinds of drunk brake fluid, No. 1 and No. 3, now renamed 101 and 103, No. 1 drunk brake fluid is mixed with 45%-55% refined castor oil and 45%-55% alcohol (concentration 95%); No. 3 drunk brake fluid is a combination of 46%-52% refined castor oil and 48%-54% butyl. The boiling point of No. 1 brake fluid is low, 8R-, and can only be used in general areas; The boiling point of No. 3 brake fluid is that it can be used in hot areas and mountainous areas.

Among the drunk brake fluids, there is still a kind of cold zone brake fluid. Made from refined castor oil, glycerin, and alcohol in a certain proportion, it can work normally around a 35. There are two kinds of mineral oil brake fluid, No. 7 and No. 9, but it has an erosive effect on natural rubber, if you change to use Dingyan oil-resistant rubber bowl and sealing parts, it can work normally at high and low temperatures, and the use effect is good.

Synthetic brake fluid and domestic grades include I, 4603, 4603-1, 4604 and 719. Synthetic brake fluids have excellent performance and do not create air resistance within the braking system when used at high temperatures.

Brake fluid is a liquid medium that transmits braking pressure in the hydraulic braking system of automobiles, and is used in vehicles with hydraulic braking systems. The performance requirements for brake fluid are: good viscosity and temperature, low freezing point, and good low-temperature fluidity; High boiling point, no gas resistance at high temperature; The quality changes little during use, and does not cause corrosion and deterioration of metal parts and rubber parts.

There are three types of brake fluids. Castor oil-alcohol type: press 1:with refined castor oil and ethanol

1. Formulated; Synthetic: made of ether, alcohol, ester and other additives mixed with lubrication, anti-oxidation, anti-rust, anti-rubber swelling and other additives; Mineral oil type: made by adding thickeners and other additives to refined light diesel fuel fractions.

It should have a high boiling point. Modern automobiles brake more frequently in driving, the temperature of the brake drum (disc) continues to rise, such as the use of brake fluid with a lower boiling point, often in the pipeline gas resistance resulting in brake failure, so the evaporation of brake fluid should be low, not easy to vaporize at high temperature. Suitable high-temperature viscosity and good low-temperature fluidity.

The brake fluid can transmit pressure in time under various conditions, and at the same time lubricate the moving parts in the transmission mechanism. It has anti-oxidation, anti-corrosion and anti-rust properties. Long-term contact with the metal of the brake fluid should not produce gels and corrosive substances due to oxidation, or discoloration due to rust, or even the formation of pits.

Low moisture absorption, good water solubility, and less drop in boiling point. Even if moisture enters the brake fluid, it is required to be able to form particles and mix evenly with the brake fluid without separation and precipitation. Good adaptability to rubber.

The brake fluid should not have a swelling effect on the rubber parts, otherwise it will lose its due sealing effect, so the brake fluid should have good adaptability to the rubber parts. In spring and summer, it is based on the water solubility of the brake fluid that reminds everyone to pay attention to check the condition of the brake fluid in daily use of the car to avoid excessive integration of water and affect the braking effect of the vehicle. Buy Kia, go to Changsha Jiuya; Withdraw the car, come to the Jiuya store with the most complete models; If you want a discount, go to the Kia store on Jinxing North Road immediately; To do maintenance, of course, it is to Jiuya, who enjoys VIP services.

Automobile brake fluid, also known as brake fluid, is a fluid used to transfer pressure in the hydraulic braking system of automobiles. In China, brake fluids are divided into JG0, JG1, JG2, JG3, JG4, JG5 and other levels, of which JG3, JG4 and JG5 correspond to the DOT3, DOT4 and DOT5 levels formulated by the US Federal Motor Vehicle Safety Commission respectively. JG0 brake fluid is recommended for use in severe cold areas; JG1 and JG2 brake fluids are generally used in the hydraulic braking system of ordinary vehicles; JG3 brake fluid requires suitable high and low temperature viscosity, good lubricity, and excellent compatibility with rubber seals, otherwise it will cause problems in the brake system.

Brake fluid can be used in the vast area of China, suitable for all kinds of high-end cars and light, medium and heavy vehicles of hydraulic braking system; JG4 brake fluid is suitable for cars with high brake fluid operating temperature; JG5 is used in vehicles with special requirements for brake fluid. At present, for domestic models, JG3 brake fluid is widely used.

Unified force synthetic brake fluid HZY4 (DOT4) Its product characteristics are: fast conduction speed, sensitive braking, HZY4 (DOT4): borate synthetic brake fluid.

It has excellent high-temperature stability and high-temperature gas resistance resistance. It has low sensitivity to water, low moisture absorption, and the boiling point is not easy to drop. Moreover, it is not easy to expand in contact with rubber, and has good compatibility.

It has excellent chemical stability and excellent corrosion protection for metal parts. This product has good low temperature fluidity at -50°C. It is suitable for all kinds of drum or butterfly braking systems that require the use of HZY4 (DOT4) products, and can be used in all seasons.

Hzy4(dot4): equilibrium reflux boiling point 255°C, wet equilibrium reflux boiling point 158°C.

What are the types of brake fluid in automobiles? Which one is best?

Brake fluid is very important for the safety of the car, so it is necessary to change the brake oil regularly within 2-3 years The replacement interval of the brake fluid, because with the increase of use time, the moisture in the air will invade the brake fluid and reduce the boiling point of the brake oil, the normal dry boiling point of the brake fluid is 260 degrees, and the boiling point of the brake oil immersed in water can be reduced to 160 degrees, and the brake fluid models we use now mainly include dot3 dot4 dot5. Most major automakers use DOT4 brake fluid, so we chose DOT4.

There are many brake fluid brands, for example, each major lubricant brand has its own brake fluid, as well as some specialized brake system brands. For example, Philippodo in the UK, TRW in Germany, and Bosch in Germany are all good choices. Ricinols:

45%-55% extracted from refined castor oil and 55%-45% low carbon alcohol (ethanol or butanol) are blended, and colorless or light yellow transparent transparent liquid is obtained by precipitation, that is, alcohol automobile brake oil. Castor oil and ethanol are ethanol type 1, and castor oil and butanol are ethanol type 3. The raw materials of alcohol brake fluid are easy to obtain, the synthesis process is simple, and the lubricity is good.

The disadvantage is that the properties are unstable when the boiling point is low and the temperature is low. Mineral Oil: Made from refined light diesel fuel fractions with the addition of thickeners and other additives.

Synthetic molding: Contains ether, alcohol, ester and other additives lubrication, anti-oxidation, anti-rust, anti-rubber swelling. The working pressure of the brake oil is generally 2MPa, up to 4 5MPa.

All liquids are incompressible.

In a sealed container or a piped filled with liquid, when the liquid is under pressure, it quickly and evenly transfers the pressure to all parts of the liquid. Hydraulic braking is a big fight that uses this principle to work. However, it should be noted that the brake fluid is represented by the Ministry of Transport, followed by the numbers such as D0T3, D0T4 and DOT5, and the numbers behind the brake fluid representing the quality grade.

The most inflated brake fluid on the market right now is dot5. Brake fluid can only replace low level with high level, and cannot replace high level with low level. At the same time, the oil must be changed to a professional and reliable place, completely remove the original old oil, clean the oil circuit with new oil, and then add new oil.

Security Issues! Remember!

There are three types in total, namely synthetic brake-resistant channer fluid, mineral oil brake fluid, and castor-alcohol type. It must be better to hold castor oil-alcohol type, after all, the production process of this brake fluid is more complicated, and the braking effect is also better.

Including mineral oil type, boiling point brake fluid, castor oil-alcohol, general type of synthetic ethers, these are all brake fluids that can be used by automobiles, mineral oil type of regret This brake fluid cooker is better, which is conducive to the maintenance of the braking effect of the car.

The automobile manufacturing industry is now only divided into three categories: one is the alcohol manufacturing industry, the other is the molding automobile brake fluid, and the other is the mineral oil brake fluid; I think synthetic car brake fluid is the best answer to hail.

The brake fluid of automobiles is generally divided into hzy3, hzy4, hzy5, hzy6; HZY3 is the best, because of this grade of brake fluid, its suction mold is bright, and the water is better, which will improve the braking performance of the car.

The role of car brake fluid:

The brake fluid is increased by the main brake cylinder through the liquid pressure, so that the piston on the sub-cylinder on the four wheels is ejected under the action of the sealed leather bowl, and the principle of lever is used to act on the brake disc and brake pads.

Brake fluid, also known as brake fluid, comes in three types. When purchasing, you should choose a reliable manufacturer, and the higher the level, the better. Its braking working pressure is generally 2MPa, and the high can reach 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.

Brake fluid, also known as brake fluid, is an indispensable part of braking system. Brake fluid is a liquid medium that transmits braking pressure in a hydraulic braking system and is used in vehicles with hydraulic braking systems.

In layman's terms, you can't brake without it.

The function of brake fluid is to transmit the pressure of the brake, because most modern cars use hydraulic brakes, so the liquid of brake fluid is needed to transmit the braking force applied to the vehicle, so as to achieve the purpose of braking. Generally speaking, the replacement cycle of brake fluid is two years or 40,000 kilometers, but once the owner finds that the brake force decreases or the brake lag in daily driving, he must check the brake fluid in time, because it is likely to be caused by the deterioration of the brake oil.

There are three types of automobile brake fluids: alcohol, mineral oil and synthetic. Among them, there are 2 grades of alcohol type, No. 1 and No. 3; There are 2 grades of mineral oil type: No. 10 and No. 15. These 2 varieties have been eliminated.

At present, synthetic brake fluids are mainly used. There are three types of synthetic brake fluids: alcohol ether type, ester type and silicone oil type, but the most used are alcohol ether type and ester type. Automobile brake fluid, also known as brake fluid, is a fluid used to transmit pressure in the hydraulic braking system of automobiles.

Automobile brake fluid (hereinafter referred to as brake fluid) is an important product related to traffic safety. 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".

Brake fluid, also known as brake fluid, is a functional liquid that transmits pressure in the vehicle braking system and enables the braking system on the wheels to achieve braking action, and its main role is to transmit energy, heat dissipation, anti-corrosion, anti-rust and lubrication.

The performance requirements for brake fluid are:

1. Good viscosity and temperature, low freezing point, and good fluidity at low temperature.

2. The boiling point is high, and there is no gas resistance at high temperature.

3. The quality changes little during use, and does not cause corrosion and deterioration of metal parts and rubber parts.

Extended Information: Precautions for Buying Brake Fluid:

1. Look at the viscosity and color of the product, the brake fluid is too thin to use, there is no color, transparent can not be used (generally the color of the qualified brake fluid is light yellow or dark yellow), the qualified brake fluid is obviously more viscous than water, it looks like diluted honey, and the diffusion speed is slow when poured on the glass plate.

2. The viscosity of inferior brake fluid is as thin as water, and the diffusion speed of pouring a small amount on the glass plate is fast, and you can feel that there is no consistency when you dip your fingers.

3. Comparison, cost decision, quality determination. The raw material of qualified brake fluid is mainly the basic raw material of petroleum processing - ethylene oxide, which is polymerized from ethylene oxide into polyethylene glycol monoether. This results in a high material cost for qualified brake fluid.

Car brake fluid is brake fluid. Automobile brake fluid is a liquid medium that transmits brake pressure in the hydraulic braking system, brake fluid is also known as brake fluid or force oil, in the braking system, automobile brake fluid is an indispensable part, it is used as a medium to transmit brake pressure. Since the fluid cannot be compressed, the pressure from the master cylinder is transmitted directly to the sub-cylinder via the brake fluid.

Brake fluid will slowly fail over time. Due to the strong water absorption of brake fluid. The deterioration of brake fluid is due to the deterioration of the fluid due to its water absorption, which affects the braking effect.

If the brake fluid deteriorates or the performance is reduced, it will directly affect the foot feel of the brake system and the life of the brake pads and brake discs.

The brake fluid has the characteristics of water absorption, and there will be a decrease in boiling point, pollution and different degrees of oxidation and deterioration, and if it is not replaced for a long time, it will corrode the braking system and bring hidden dangers to driving. It is recommended that the brake fluid must be replaced once every two years or 40,000 kilometers. Many of them are replaced at the time of the first maintenance.

However, it is important to remember that different brands of brake fluid should not be mixed.