What should I pay attention to when using car antifreeze? 10

The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function. Antifreeze prevents coolant from freezing and cracking radiators and freezing engine blocks or covers when the coolant freezes when parking in the cold winter. But we want to correct a misconception that antifreeze is not just for winter, it should be used all year round.

The use of antifreeze in the engine has the following protective effects:

1. It plays a role in anti-corrosion protection for the components of the cooling system.

2. Prevent scale and avoid reducing the heat dissipation effect of the radiator.

3. Ensure that the engine can work within the normal temperature range.

Therefore, the antifreeze of the engine must have the characteristics of anti-freezing, anti-boiling, anti-corrosion, waterproof and non-foaming, and is not affected by the season and region. Among them, freezing point and boiling point are the basic indicators of antifreeze. Taxis must be replaced regularly, generally every two years or every 40,000 kilometers driven, and taxis should be replaced more frequently.

Antifreeze is added between the highest and lowest water mark in the antifreeze jug.

If there is no water mark in the antifreeze kettle, then follow the midline in the kettle, and the reference is slightly higher than the midline, which is the appropriate position.

If too much antifreeze is added, it will cause the antifreeze to overflow, but the antifreeze is corrosive and will cause some corrosion damage to some parts inside the car. If there is less antifreeze, the engine and water tank may freeze in low temperatures, or too little antifreeze will not have enough cooling effect, which will also cause the engine to fail.

The role of antifreeze

1. Cooling effect

Automobile antifreeze, also known as coolant, is used for cooling as the name suggests, which is also the basic function. During the use of the car, the engine is in a high-temperature running state, if the car engine has been working at a high temperature, it will cause engine damage or even paralysis in a short time. When the antifreeze is added to the cooling system, the heat of the engine will pass through the cooling system, and the heat will be dissipated to the surrounding area after the heat is reduced, which will play a cooling role and avoid boiling.

2. Anti-freeze effect

In winter, the temperature is low, and the engine and cooling system are prone to freezing, resulting in the car being unable to start. Even the cylinder block and cylinder head were frozen. In order to enable the car to continue to be used in the low temperature in winter and not to freeze the engine, antifreeze is added.

The car antifreeze adds some antifreeze, the general freezing point can reach minus 40, and better it can reach minus 60, which can keep the cooling system from freezing in low temperature weather and play an antifreeze role.

3. Anti-corrosion

Most of the parts of the automobile cooling system are made of metal, due to the different electrode potentials of different metals, electrochemical corrosion is easy to occur under the action of electrolyte, and a certain amount of anti-corrosion additives are added to the automotive antifreeze, which can be added to the refrigeration system to prevent corrosion of the cooling system and play an anti-corrosion role.