Old drivers often say that there is no shortage of five oil and three water, which generally refers to the fuel of the car, engine oil, steering power oil, gearbox oil and brake oil, and antifreeze, glass water and battery electrolyte. With the continuous development of automobile manufacturing, most household cars now use electronic power systems to omit steering oil, while batteries are mostly maintenance-free, so adding electrolyte is no longer an item of daily car maintenance. through the color of the battery observation hole, we can know whether the state of the battery is normal. So the so-called “five oils and three waters” has become four oils and two waters. Today we are going to talk about one of them-brake oil.
What is brake oil?
Brake oil, also known as brake fluid or brake fluid, its function is to transfer braking force, the pressure output from the vehicle brake master pump will be transferred to each sub-pump through the brake oil, thus generating braking force to slow down the vehicle. Brake oil is generally divided into three types: 1, castor oil alcohol type, prepared by castor oil and low carbon alcohol in proportion, 2, synthetic molding, made of ether, alcohol, ester and other additives mixed with lubrication, antirust and other additives. 3. Mineral oil type, which is made of refined light diesel oil fraction adding thickener and collecting antioxidants. Due to the strong water absorption of traditional brake oil based on ethylene glycol, this brake oil is easy to boil when braking fast, resulting in air plug phenomenon, and will cause the liquid level of brake oil to decrease and the amount of brake oil to be reduced, so now more brake oil synthesized by silicone oil is used. At present, the commonly used brake oil standards are DOT3 and DOT4 standards, which are internationally recognized brake oil standards. the state of brake oil is related to whether the vehicle braking system is normal, whether it can effectively reduce the speed and stop the vehicle safely in the state of emergency. Therefore, brake oil is an important part of automobile oil, and daily maintenance and inspection are essential.

Maintenance of the second brake oil

Under normal circumstances, the shelf life of brake oil is two years, so the replacement cycle of a small vehicle is also two years, but if the vehicle is in deep water or soaking in the engine compartment, the brake oil should be changed immediately if it is possible to be mixed with water. In addition, if the brake oil is accidentally mixed with antifreeze, glass water, fuel and other liquids, it is also necessary to change the brake oil in time. Because the mixing of these liquids will make the brake oil deteriorate, the brake effect will become worse or even fail. In addition, if there is gas in the brake oil, it is also necessary to discharge the gas in time to replenish the brake oil. The brake oil kettle is in the engine compartment. Generally, you can check whether the brake oil level is sufficient every 3-6 months. If it is below the lower limit, you need to check and replenish the brake oil. In addition, you should observe the clarity of the brake oil. If the liquid becomes turbid and mixed with impurities, it should also be replaced in time. Change brake oil must choose the original brand or regular brand products, can not be cheap to choose unknown brands or fake and shoddy products, this is very dangerous. In addition, regular manufacturers or maintenance shops change brake oil by professional equipment to circulate the new brake oil into the brake system to replace it more thoroughly to prevent the old brake oil from remaining in the brake system. On the other hand, many small roadside shops use drip drip to discharge the old brake oil by relying on the gravity of the new brake oil, which has less pressure and may not be able to completely replace the old brake oil in the brake system. The brake effect of mixing new and old brake oil may not be good. Therefore, when we change the brake oil, we must choose a regular 4s store or maintenance shop to replace it.

Conclusion

Brake oil is an important part of the vehicle braking system, which is related to the safety of vehicles and passengers, so we still have a lot of points to pay attention to in the process of use. first of all, brake oil of different brands can not be mixed. This will greatly reduce the performance of brake oil, and the vehicle will check and change brake oil in time when it has been in use for more than two years. If the brake is found to deviate while the vehicle is running, it means that the brake system is malfunctioning, and the brake oil and brake system should be checked in time. How about, after seeing so much, do you pay attention to brake oil in your usual maintenance? What are the understandings and questions about brake oil? Welcome to put forward your own experiences and opinions here, and let’s exchange and study together!