Antifreeze, all called antifreeze coolant. As the name suggests, it is a coolant with antifreeze function. Antifreeze coolant is a coolant containing special additives. At present, 95 percent of coolant in China is used in water-based antifreeze of ethylene glycol.
In addition to ethylene glycol, there are many types of antifreeze, mainly including calcium chloride, methanol, ethanol, glycerin, and the like. The extensive use of ethylene glycol is because the most significant feature of ethylene glycol is the high volatility of antifreeze and boiling point, so that ethylene glycol is the most ideal raw material for coolant.
It is indeed, and antifreeze can prevent the cooling liquid from the cold winter parking, damage the radiator and the freezing of the engine cylinder or cover.
In fact, antifreeze not only needs to be used in winter, and summer is also inseparable. Because it has an anti-boiling role in addition to antifreeze effect.
Because in a high temperature in the summer, the vehicle’s engine will produce a lot of heat. At this moment, the coolant of the vehicle is required to reduce the temperature of the engine.
If the vehicle lacks the coolant, it will cause the engine to get higher and higher. When the engine temperature is raised, the components will expand, and the engine may have the risk of a tape.
In addition to antifreeze, antifreeze can also function to the vehicle cooling system to prevent corrosion protection. At the same time, it can also prevent the production of scale, avoiding the heat dissipation function of the heat sink to ensure that the engine works within the normal temperature range.
It can be said that for automotive engines, the role of antifreeze is essential.
Since antifreeze is so important, then in daily use, the owner should pay attention What?
In most vehicles, automobile manufacturers have recommended replacement of antifreeze in two years. FurthermoreSome said that antifreeze is completely unnecessary to replace, and even in antifreeze.
For these two different perspectives, the speed of the car is to be treated rationally. Automobile manufacturers just suggested that the antifreeze is replaced in two years, and it is not necessary. Usually we will check the state of anti-frozen liquid in time, if everything is normal, there is no need to replace it once in two years. 
In addition, the vehicle just has a high temperature fault code, which is possible to add some pure water. In particular, it is necessary to send the vehicle to a professional maintenance mechanism in time, and replace antifreeze in time, and do not use the antifreeze water to use for a long time.
In addition, we try to use the same brand of antifreeze when replacing antifreeze. Because different brands of antifreeze production formulations will differ, they may produce some poor chemical reactions, causing damage to the vehicle.
Finally, the replacement period of the antifreeze is also very large with the use of the vehicle. Relationship, more temperature and km, etc.
The above is that I personally regard some of the views used by the vehicle antifreeze. After all, it is not a professional auto repair expert, if there is something wrong. Also please add, let more owners understand the correct usage of antifreeze.
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