汽车刹车油(制动液)常识、更换方法（Common sense and replacement method of brake fluid (brake fluid)）.docVIP

汽车刹车油(制动液)常识、更换方法（Common sense and replacement method of brake fluid (brake fluid)） The choice of brake oil is very important, related to safety Oh, so be sure to choose carefully, the quality is guaranteed, not cheap! Brake oil DOT standard formulation is very harsh, not simple deployment will be able to achieve. On the domestic market, many low quality brake fluid is marked with DOT3, DOT4 standards, in fact, product quality is not qualified. Experts recommend: brake fluid two years /4 km replacement The brake fluid has the characteristics of water absorption, and the brake system will corrode the brake system for a long time, which brings hidden trouble to the train. The brake fluid is usually replaced two or 40 thousand kilometers, and the brake fluid level and capacity are changed depending on the specific vehicle type. Truly qualified standard of brake fluid has several characteristics: flexible transmission braking force in high temperature, high speed, cold, hot and humid conditions; the braking system of metallic and non-metallic materials without corrosive; can effectively lubricate moving parts of the brake system, brake pump and prolong the service life of the leather bowl. Therefore, consumers choose qualified brake fluid products is very important. A lot of harm to use inferior brake fluid, brake fluid inferior equilibrium reflux boiling point is not standard, this product is easy to produce gas resistance, resulting in brake failure; and brake fluid viscosity inferior unqualified, the viscosity at low temperature so that the brake is slow, low viscosity at high temperature and lead to poor lubrication, wear parts. Therefore, consumers choose brake fluid in three areas should pay attention to: A smell: smell the smell. The standard brake fluid smells sweet and the bad brake fluid smells like methanol or the taste of artificial flavors. Two test: Test viscosity. Qualified brake oil is much more viscous than water. It looks like diluted honey. It falls o