How often is the most appropriate time to change the car antifreeze, and the antifreeze should be changed every few years

General automobile antifreeze is used for two or three years or the car is drivenmileageWhen it reaches 30,000 to 40,000 kilometers, we need to replace it once. Automobile antifreeze needs to be checked regularly. If the recommended replacement time is not reached, but the antifreeze has already precipitated, we should also consider replacing it at this time.

What to pay attention to when replacing the car antifreeze

1. To replace the antifreeze, the car engine must be guaranteed not to work. Do not add antifreeze when the car is hot, otherwise it may cause burns. We need to wait for a while, wait for the car engine and various parts to cool down before adding antifreeze;

2. Do not add water to the antifreeze. The water contains minerals and impurities. If it is added to the antifreeze, it will lead to impurity. And we can't directly replace antifreeze with water. Water is easier to freeze than antifreeze, plus there are more impurities, the use effect will be very bad;

3. Antifreeze cannot be mixed and added. There are many types of automobile antifreeze, and there will be differences in colors between different types. Their formulas are different, if mixed together, it may cause chemical reactions and affect the effect;

4. Pay attention to the pipeline of the engine when adding it. If the pipeline of the engine is dripped with antifreeze or water, it may be rusted.

Automobile antifreeze is a very necessary oil in the car. If it is not enough or it has reached the shelf life, it must be replaced in time. If it is not convenient for you to replace it, you can go to the nearby repair shop or 4s shop.