The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function. Antifreeze can prevent the coolant from freezing and cracking the radiator and freezing the engine cylinder block or cover during cold winter parking. Many people think that antifreeze is only used in winter, but we want to correct this misunderstanding. In fact, antifreeze is not only used in winter, it is used all year round.

The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function. Antifreeze can prevent the coolant from freezing and cracking the radiator and freezing the engine cylinder block during cold season parking, but we need to correct a misunderstanding. Antifreeze is not only for winter use. In normal car maintenance projects, the engine antifreeze needs to be replaced every year, and the frequency of antifreeze replacement for special vehicles should be high.

There are many types of automotive antifreeze, such as calcium chloride (CaCl2) in inorganic matter, methanol (CH3OH) in organic matter, ethanol (C2H5OH, commonly known as alcohol), ethylene glycol (C2H4 (OH) 2, commonly known as sweet alcohol), glycerol (C3H5 (OH) 3, commonly known as glycerin), lubricating oil, and sugar, honey, etc., which are common in our daily life, can be used as the mother liquor of antifreeze. After adding an appropriate amount of pure soft water (excluding or a small amount of water containing calcium and magnesium ions, such as distilled water, uncontaminated rainwater, snow water, etc., the total hardness component concentration of its water quality is between 0 and 30 ppm), it can become an antifreeze in the general sense.

Because methanol ethanol is more volatile, it is not suitable for northern vehicles. In addition to antifreeze, antifreeze also has the following advantages:

Anti-corrosion function: The engine and its cooling system are made of metals, including copper, iron, aluminum, steel, and solder. These metals will corrode and rust over time when they come into contact with water at high temperatures. And antifreeze not only does not cause corrosion to the engine cooling system, but also has anti-corrosion and rust removal functions.