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Car care: how much do you know about car brake fluid

Blog 3年前 (2021-09-16) 378 Views

  carBrake fluid is also known asbrakeOil is used in automobile hydraulicsBraking SystemThe liquid that transfers pressure in the medium. Since its pros and cons are directly related to the reliability of the brakes, the purchase of brake fluid is related to the safety of riders. Never take it lightly. Compared with most private car owners, brake fluid (brake fluid) is one of the things they care about and understand the least. Speaking of engine, fuel consumption, and brand, I believe everyone who loves a car can talk about it. A few words, but when it comes to brake fluid, very few people really know it.

  The higher the level of brake fluid, the better?

What the reporter searched on the "National Standard for Brake Fluid" from the website of the National Standards Industry Association is: In January 2004, my country implemented the national mandatory product standard GB12981-2003 "Motor Vehicle Brake Fluid" in line with international general standards. . According to GB12981-2003 "Motor Vehicle Brake Fluid", the brake fluid is divided into HZY3, HZY4, HZY5. Corresponding to the international DOT3, DOT4, DOT5. There are high and low levels of brake fluid, is it better for consumers to choose a higher level of brake fluid?And from the Sinopec Great Walllubricating oilCompany experts told reporters that the higher the brake fluid level, the better the safety. Under normal circumstances, it is appropriate to choose brake fluids that meet the HZY3 standard for micro, mid-to-low-end cars, and HZY4 standard brake fluids for mid-to-high-end cars. Of course, there is no problem with choosing HZY4 for mini, mid- and low-end cars, and it's better.

  Brake fluid is closely related to life?

According to researcher Yan Zili, one of the drafters of the national standard for brake fluid, the quality of brake fluid is directly related to the safety of vehicle driving. In 2005, nearly 100,000 people lost their lives in various traffic accidents in my country. Among them, vehicle brake failure and brake failure are one of the important factors. Because of this, countries in the world have always attached great importance to the supervision of brake fluid, and Western developed countries have even included it in the scope of road safety regulations to control it. In my country, brake fluid is subject to national industrial product production license management. Technical experts from Great Wall Lubricant Company told reporters that Western countries are very demanding on DOT standard formulation and cannot be achieved by simple deployment. Many low-priced and low-quality brake fluids in the domestic market are marked as meeting the DOT3 standard, but the product quality is not up to standard.

  The brake oil must be changed in two years?

Chief Engineer Wei Junqiang from Beijing Auto Repair Company introduced that the brake fluid has water absorption characteristics, and if it is not replaced for a long time, it will corrode the brake system and bring hidden dangers to driving. He suggested to car owners that the brake fluid must be replaced once every two years or 40,000 kilometers.

According to Wei Gong, a truly qualified brake fluid has several characteristics: that is, it guarantees flexible transmission of braking force under working conditions such as high temperature, severe cold, high speed, and damp heat; it is not corrosive to the metal and non-metal materials of the brake system; Can effectively lubricate the moving parts of the brake system, extendingBrake CylinderAnd the service life of the leather bowl. Wei Gong suggested: "If the car owner doesn't choose the brake fluid, I suggest that they go to a regular 4S shop to replace it. It is relatively safe there."