How many kilometers should antifreeze be changed?

Although a car is merely a means of transportation, its nature has undergone significant changes nowadays. It is no longer just a means of transportation but also a symbol of status. Many people buy cars often for the sake of face, especially some consumer groups with business needs. Naturally, they will purchase some luxury cars, which is understandable. Of course, it's easy to buy a car but hard to maintain it. Car owners should also be well aware of car maintenance. If they are not clear about it, not only will it damage the car, but they are also very likely to be cheated. In fact, there are many items for car maintenance. For instance, the first and second maintenance are basically free, but for some subsequent maintenance, you obviously have to pay for it yourself.

Therefore, when choosing which items require maintenance, one must be cautious. Items related to cleaning are completely unnecessary, such as oil passage cleaning, air conditioning cleaning, and tire cleaning. On the surface, they seem very useful, but in fact, they are just a waste of money. Of course, the oil in a car has a specific replacement cycle. Changing it too early is obviously a waste of money, while changing it too late will damage the car. So, in this issue, let's talk about how often "antifreeze" should be changed every kilometer? The 4S store said 30,000 kilometers. The mechanic said, "Don't get it wrong. Take a look."

Many car owners only have a superficial understanding of antifreeze and have no idea exactly what it is used for. In fact, antifreeze not only works in winter but is also very important in summer. Its function can be summed up in one sentence: it can prevent the water from boiling over in summer and freezing in winter. Therefore, only by truly understanding the function of antifreeze and then learning about its replacement cycle can one take targeted measures. Many 4S stores claim that antifreeze should be replaced every 30,000 kilometers or so, but the mechanics do not agree.

In fact, the replacement cycle of antifreeze depends on specific circumstances. If the driving environment is good and the mileage is not high, rarely driving on highways and mostly on urban roads. Then, there is no need to replace the antifreeze at 30,000 kilometers. It can be extended to 40,000 or even 50,000 kilometers. Before replacing it, be sure to pay attention to the mark and check how much antifreeze there is. However, if the vehicle is used frequently, the road conditions are poor and traffic jams often occur, the replacement cycle of antifreeze can also be slightly shortened, for example, around 25,000 kilometers.

When changing antifreeze, it is essential to note that antifreeze of different brands must not be mixed. Generally speaking, antifreeze comes in various colors. Different colors should not be mixed because the additives they contain are different. If they are mixed, it is very likely to cause pipe blockage, and then it will be counterproductive. In addition, the antifreeze filling port must not be messed up. Some car owners are not clear about it and add antifreeze to the windshield washer fluid or add the windshield washer fluid to the antifreeze. This is obviously not allowed.

It is worth mentioning that many manufacturers on the market claim to have developed "lifetime no-change antifreeze". But is this really reliable? In fact, whether it's reliable or not, there's no need to add this kind of antifreeze because it's often quite expensive, usually costing several hundred yuan. Ordinary antifreeze usually costs only a few dozen yuan and can be used for 30,000 to 40,000 kilometers. With just a few hundred yuan, it can be refilled about ten times. If calculated this way, it's a huge loss. After all, the number of times a car needs to change its antifreeze is at most three or four.