Automobile Antifreeze I believe many car owners know about it, but many novice female drivers do not know much about antifreeze. As the name suggests, the full name of antifreeze is antifreeze coolant. Its main function is to cool the engine water and dissipate heat, and the other function is to prevent the car from swelling and cracking due to coolant freezing when it is stopped in cold weather. It can be seen that antifreeze has a status in cars as much as engine oil , but if antifreeze is used improperly, it will ruin a car. Let’s share some knowledge about antifreeze for you.
antifreeze
1. It is an anti-corrosion function. The engine and its cooling system are made of metal, and its material components include copper, iron, aluminum, sodium, solder , etc. These metals will be corroded and rusted after contact with cooling water for a long time at high temperatures. Antifreeze not only cannot cause corrosion to the engine cooling system, but also has anti-corrosion and rust removal functions.
2. Increase the boiling point of the coolant. The boiling point of water is 100℃, and the boiling point of high-quality antifreeze is usually above 110℃. This makes it harder to "boil the pot" than water when using antifreeze in summer.
3. Antifreeze can prevent scale (waterproof alkali). The most headache for users is the scale problem when using water as coolant. The scale adheres to the metal surface of the water tank and water jacket, making the heat dissipation effect worse and worse, and it is also difficult to remove. The high-quality antifreeze is made of chemically treated water and is added with anti-scaling additives, which not only does not produce scale, but also has the function of descaling.
The fourth is to reduce the freezing point of the coolant. The freezing point of water is 0℃, while the freezing point of antifreeze can be adjusted, generally between -75℃ and -70℃.
Incorrectly use antifreeze
Antifreeze needs to be replaced regularly
Antifreeze is a consumable like engine oil. Most car antifreeze is replaced every two years or forty thousand kilometers. This is just a reference cycle. Generally, antifreeze is replaced according to actual conditions. If you drive frequently, it is best not to exceed the reference cycle.
As with engine oil, antifreeze will encounter high temperature deterioration during the car. The oxidized antifreeze is very likely to produce condensate, and the freezing point will decrease accordingly, and the cooling effect will be greatly reduced, and the original antifreeze effect will be lost in cold weather.
Use the appropriate antifreeze
The choice of antifreeze for different brands of models is also different. European cars are basically red antifreeze, while Japanese cars are mostly green antifreeze. The chemical properties of antifreezes of different colors and brands may vary greatly. Most of the ones sold on the market are ethylene glycol antifreezes, and some are phosphate antifreezes. Remember that these two antifreezes cannot be mixed together, as they will produce highly corrosive substances and cause great damage to the engine opportunities.
Different colors of antifreeze cannot be mixed. Here it is recommended that car owners use the original antifreeze. On the one hand, it is safer and has guaranteed quality. On the other hand, if problems occur, you can also find a 4S store to solve the problem to avoid unnecessary losses.
It is best not to add water to antifreeze
Adhesive liquid will suffer losses due to the high engine temperature during daily use. Once it is lower than the scale, it should be added in time, but it is best not to add water, because water will dilute the antifreeze, resulting in a decrease in freezing point. Even if water is added, it is still possible to use it in a short period of time. If used for a long time, severe scale will be caused by the vehicle's waterway, and blockage is not impossible.
So how to use antifreeze correctly? For the correct use of
antifreeze, firstly, the engine cooling system must be cleaned once before filling the antifreeze.At this time, since the antifreeze generally contains descaling agent and cleaning agent, if the engine cooling system is not cleaned before use, the original scale and antifreeze are easily fallen off and blocked the water pipes, resulting in poor circulation of antifreeze and excessive engine temperature. Therefore, when using antifreeze, car friends should also pay attention to using the same brand of antifreeze as much as possible to ensure safety performance.
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