How can I tell when the antifreeze needs to be changed?How often to change antifreeze in a car

I believe that all car owners know the importance of antifreeze for vehicles. Antifreeze has the functions of anti-boiling in summer and anti-freezing in winter. It can protect the cooling system of the engine, improve the heat dissipation effect and improve the efficiency of the engine. However, many car owners think that the lack of antifreeze is enough, but they don't know that the antifreeze needs to be replaced. Next, I will explain how to judge whether the antifreeze should be replaced.

How to tell when the antifreeze should be changed:

1. Check whether the antifreeze is turbid. Normally, the antifreeze is clear. If there is turbidity, it means that there are impurities in the antifreeze. These impurities will affect the effect of the antifreeze, and will also block the pipeline and affect the cooling system;

2. Smell the antifreeze. Generally speaking, the taste of antifreeze is a little aromatic. If the taste of antifreeze is sour, it means that it has deteriorated and needs to be replaced;

3. Look at the weather temperature. Generally speaking, the antifreeze used by car owners is either summer antifreeze or winter antifreeze. The difference between summer antifreeze and winter antifreeze is that the freezing point is different. If the weather is cold and the car owner is using antifreeze in summer, the freezing point of the antifreeze in summer will not be low, and the water tank will freeze, which will affect the cooling system, resulting in the inability to dissipate heat from the engine normally, which will have a greater impact on the engine. At this time, it is necessary to replace the winter antifreeze.

How often to change antifreeze in a car

Private car antifreeze generally uses ordinary antifreeze, which should be replaced every two years or 40,000 kilometers after driving. If long-acting antifreeze is used, the use time can be extended to three to five years. between. When replacing the antifreeze, be sure to drain the remaining antifreeze, otherwise the remaining antifreeze will affect the effect of the newly added antifreeze.

If the newly added antifreeze is of a different brand and model from the original one, and the old antifreeze is not put out cleanly, a chemical reaction may occur between the two, resulting in poor antifreeze effect, deterioration, and precipitation blocking the pipeline, etc. Thus affecting the normal operation of the cooling system.