1.冷却，它可以将发动机产生的热量散出，保证发动机处于好的工作温度。

1. Cooling, which can dissipate the heat generated by the engine and ensure that the engine is at a good working temperature.

2.防冻，它可以防止随车吊等专用车辆在寒冷冬天停车时冷却液结冰而胀裂车辆的冷却系统。

2. Antifreeze, which can prevent the cooling system of special vehicles such as truck mounted crane from cracking due to the freezing of coolant when parking in cold winter.

3.防腐蚀，它可以对冷却系统的部件起到防腐保护作用。

3. Anti corrosion. It can protect the parts of the cooling system from corrosion.

4.防止水垢，冷却液可以避免降低散热器的散热作用。

4. To prevent scale, coolant can avoid reducing the heat dissipation of radiator.

搅拌一体机防冻液的使用误区：

The usage mistake of antifreeze in mixer

1.一些搅拌一体机司机认为防冻液只在冬天使用，在夏天用水代替。这是错误的。

1. Some mixer drivers think that antifreeze is only used in winter, instead of water in summer. This is wrong.

2.防冻液只在北方寒冷的地方使用，在南方比较温暖的地方不用。这也是错误的。

2. Antifreeze is only used in cold places in the north, but not in warm places in the south. This is also wrong.

3.防冻液不只是在冬天使用，在车辆上它一年四季都要使用的，一般专用车每行驶两年就要更换一次防冻液，这是为了保证防冻液的冰点。因为防冻液的冰点、沸点都比水箱温度要高，常年使用防冻液，车辆的散热效果会更加显著。怎么才能知道防冻液的冰点是多少呢？一起来看一下：

3. Antifreeze is not only used in winter, it is used all year round in vehicles. Generally, the antifreeze is replaced every two years for special purpose vehicles, which is to ensure the freezing point of antifreeze. Because the freezing point and boiling point of antifreeze are higher than the temperature of water tank, the cooling effect of vehicles will be more significant if antifreeze is used all year round. How to know the freezing point of antifreeze? Let's see:

从发动机冷却系统中放出一小杯的防冻液；然后将防冻液放入冰柜中，将冰柜的温度逐渐往下调，检验什么温度时，防冻液开始结冰，从而检验使用中防冻液的冰点。防冻液的颜色常见的有四种，红色、黄色、蓝色和绿色，其实防冻液本身是无色透明的液体，之所以做成鲜艳的颜色，主要是便于区分和辨别而进入一些色剂，这样用户在选购的时候好区分，不同颜色的防冻液是不能混用的，否则就会损坏发动机。

First, a small cup of antifreeze is discharged from the engine cooling system; Then put the antifreeze into the freezer, and gradually adjust the temperature of the freezer down. When the temperature is checked, the antifreeze begins to freeze, so as to check the freezing point of the antifreeze in use. There are four common colors of antifreeze, red, yellow, blue and green. In fact, antifreeze itself is colorless and transparent liquid. The reason why it is made into bright colors is that it is easy to distinguish and identify, and some color agents are added. In this way, users can easily distinguish when choosing antifreeze. Antifreeze of different colors cannot be mixed, otherwise the engine will be damaged.