应该怎样添加防冻液（How should I add antifreeze）.docVIP

应该怎样添加防冻液（How should I add antifreeze） Antifreeze, hence its name, prevents liquid from freezing and damages the water tank. Antifreeze is also called ethylene glycol aqueous solution. Is glycol and water according to a certain proportion of blending. In fact, antifreeze is not only winter antifreeze, he can also play the role of anti boiling in the summer, but also to prevent the role of water tank rust. Buy antifreeze need to pay attention to the following points. 1., buy genuine Antifreeze coolant tank type auto parts on the market there are many fake and shoddy products mixed with them, some of the so-called antifreeze is added pigment mixed with ethanol and water; do not add any preservatives, additives such as scale inhibitor, boiling point at about 90oC, strong corrosive, prone to cause the engine overheating. A simple method to distinguish the authenticity of antifreeze is: high-quality antifreeze coolant tank is colorful, clear and transparent and no smell; in a beaker heating antifreezing coolant tank, with a thermometer measuring the boiling point, boiling point where less than 100oC for liepin. 2. brand choice Antifreeze coolant tank brand is generally its freezing point value, should be selected in conjunction with the use of regions and seasons to determine, in principle, water dilution of freezing point value should be lower than the minimum temperature in the area around 10oC. Different area optional reference values were different, the area north of the Yangtze River, northeast and northwest regions should be selected for -35 ~ -50, antifreeze, some areas can be selected as the coolant tank freezing point -10oC, -15oC, the Great Wall also has this kind of product. High performance heavy duty diesel engine if often works under high temperature, but also consider choosing the coolant tank type, protection of tank engine cooling liquid under high temperature has excellent thermal conductivity and excellent, suitable for all kinds of automotive cooling