Does the car s coolant need to be replaced? How often should I replace it?

The general model can be replaced once every 2 years or 40,000 kilometers! Some luxury cars, such as Mercedes-Benz, even have an antifreeze replacement interval of 10 years or 200,000 kilometers. It can be seen that in fact, the replacement cycle of antifreeze is very long, and the owner only needs to replace it according to the deadline on the user manual.

In general, the engine cooling system is shipped with antifreeze coolant (-35°C) that can be used in all seasons. Antifreeze inherently contains rust and preservatives, so there is no need to add other cooling system additives.

There are two points to pay attention to in <> antifreeze: first, it cannot be mixed, and the additives of various brands are different, resulting in the performance of antifreeze being reduced; Second, in case of emergency, such as coolant level alarm, do not add mineral water or tap water, but add pure water or distilled water, which can ensure that it can continue to be used for a long time.

For some joint ventures or imported models, the coolant replacement cycle used is very long, as shown in the figure below, some models of Honda require 10 years and 200,000 kilometers to replace, which can basically be the same life as the engine, and the general engine 200,000 kilometers overhaul, can be replaced by the way. Choose a regular brand of antifreeze. If your vehicle is within the warranty period, it is still recommended to use the original manufacturer, if the warranty period is out, then choose the brand, so that the quality is guaranteed.

In addition, it is also necessary to look at the production date of the antifreeze, if it is not used at one time, the next time you use it to see if there is any sediment in it.

If you are not sure what model the original factory adds, you also have to have the most basic judgment standard, that is, the coolant is basically divided into red, green and blue, we must add a similar color when we add, these additives because of its volatility, so it has a certain aging, in addition to the reason of "unpreventable", rust and scale will still have some. For these two reasons, the coolant has a replacement cycle, generally two years or 60,000 kilometers.

According to the car instruction manual, the replacement of antifreeze is generally about 40,000 kilometers in two years. The manufacturer recommends that the owner replace the coolant every 2 years or 40,000 kilometers, but in the actual driving process, due to the different driving conditions of the car, the cycle of replacing the coolant is also different, and the owner needs to check the coolant in the daily driving process, and replace the coolant reasonably according to the actual situation to avoid the cooling performance of the engine due to abnormal coolant.

Of course, it needs to be replaced, at least once a year, provided that the coolant is not missing and has not deteriorated.

Toyota's original super long-lasting durable antifreeze has a theoretical life of 8 years and 16w km, and the life after replacement is 4 years and 10w km! Because the actual use process will continue to evaporate, when replenishing is not necessarily the replenishment of the stock solution (the antifreeze replenished free of charge by the 4S shop repair shop is generally the surplus of the accident car, the old antifreeze of the accident car retains the new antifreeze and the water),

Of course, it needs to be replaced, if it is not replaced, it will damage the water tank, and there will be a lot of extra garbage, which is generally replaced every two months.

After 40,000 kilometers or two years, it is recommended to change the antifreeze.

Before adding antifreeze, we must carry out a careful cleaning of the engine cooling system, the antifreeze is added with descaling agent and cleaning agent, if we do not clean the engine cooling system carefully before use, add it directly.

The scale in the engine cooling system falls off after contact with the antifreeze, forcing the antifreeze to become turbid, and in serious cases, it will also block the water pipe, and the water channel or precipitate in the lower elbow joint of the water tank, resulting in poor heat dissipation, and the antifreeze can not be circulated in the automobile system, resulting in high engine temperature.

The coolant of the car can generally be changed once every two or three years, if it is more car, it can be calculated according to the number of kilometers traveled, and the coolant can be replaced once after driving 50,000 or 60,000 kilometers.

In addition to replacing the coolant in time, the following aspects also need to be paid attention to, so that the coolant can play a better role.

One of them: in addition to adding coolant in winter, it should be added throughout the year, many people mistakenly think that as long as the coolant is added in winter, everything will be fine, in fact, in addition to the effect of anti-freezing, coolant also has a variety of functions such as anti-corrosion, anti-boiling and anti-scale, so adding coolant throughout the year can better protect the mechanical group and avoid them from damage.

Second: pay attention to distinguish the authenticity, there are many fake and shoddy products on the market, do not blindly buy inferior coolant cheaply, which will not play a protective role and will only aggravate the damage to the engine. Generally, the better coolant is bright and transparent in color, no peculiar smell or only a light fragrance, while the inferior coolant is generally turbid, opaque and cheap, this kind of coolant should not be purchased.

Third: do not mix the coolant, many car owners in order to save money and trouble, generally in the coolant and completely used up before the new coolant is added to the mix, this practice is not right, because the coolant is divided into alcoholic, glycerol, ethylene glycol and other types, their production process is different to play a different role, mixed for the engine will be more harmful.

The same type of coolant is different, the alcohol coolant is made of alcohol, its biggest advantage is that the production method is simple and cheap, but because the boiling point of the alcohol-type coolant is low, flammable and easy to evaporate, so now it has been gradually eliminated. Glycerin coolant is just the opposite, it has a high boiling point, small corrosiveness, non-toxic and non-flammable, so it is more popular than alcohol-based coolant, but it also has the disadvantages of high cost and low popularity, and it is difficult to be popularized.

At present, the coolant on the market is mainly ethylene glycol coolant, which combines the advantages of the first two, and at the same time, it is also relatively suitable, so it is more popular with car owners.

How often does the coolant of a car be replaced? Netizen: I didn't expect it to be this time!

At the end of the year, many people with cars go to the 4S shop to repair and maintain their cars.

With the emergence of electric vehicles on the market, questions about electric vehicles are also emerging, among which people are most concerned about the battery of the car, and the car battery is the core part of the new energy vehicle. In the unlikely event that there is a problem with the car's battery, the car will literally shut down completely.

The car was able to start normally in harsh winter and hot weather conditions, and it should be said that there is one thing that is indispensable. It is antifreeze, and the full name is antifreeze coolant. The effect is obvious. We know that water starts to freeze at sub-zero temperatures, forming a solid that doesn't flow.

Some time ago, I just changed the coolant, also called antifreeze, for the first time in four years, why did I change the antifreeze? It's been three or four years, it's long overdue to change, I haven't taken the time to change, in fact, the original car antifreeze is pretty good, it looks very pure, haha, of course, it doesn't mean that you have to wait for the coolant to deteriorate, the naked eye can see it, before you go to change, then it will be a big loss, and it must have been harmful to the engine.

Generally, the antifreeze of the car is recommended to be changed once every two years, in fact, you don't have to worry about this, as long as you buy **, not junk goods, it is OK to change it once every three years, there is no need to be so poor, of course, you can't say that you don't change it for five or six years, it definitely doesn't work, not only has the possibility of boiling the pot, but also causes irreversible damage to the engine. So I recommend that you replace it in time when you have time in about two and a half years. Because beyond this warranty period, some of the protective properties of the coolant will be weakened, and the engine will not be better protected.

In the case of insufficient coolant, it is necessary to add it in time, when adding coolant, it is best to choose the same color and type of coolant, if you do not know the model of coolant, you can choose the universal general model that does not distinguish the color. Try not to mix different colors of antifreeze (green and red are common). Looking at the coolant level of the auxiliary tank can be used to diagnose whether the coolant is sufficient.

The role of antifreeze (coolant), as the name suggests, plays the role of cooling, and at the same time it is also called antifreeze, because it has to have the effect of antifreeze in winter, when the temperature is lower than 0°. In addition to these, the coolant also has anti-corrosion and anti-rust properties.

Due to the operating characteristics of the coolant and the working environment, the boiling point of the coolant is higher than the boiling point of water, usually between 105° and 108°. And because of the different regions, the freezing point of the coolant is also different, the perennial temperature in the south is higher than 0 °, so the water tank treasure is usually selected (** is relatively cheaper), the lowest temperature in the north is generally more than ten degrees below zero, so it is enough to choose the freezing point of -25 °, and then the cold area in the north chooses the freezing point of -45 °.

Changing your coolant regularly can help avoid many problems. Flushing the coolant system every time the coolant is changed maximizes the efficiency of the cooling system.

In addition, it ensures that it is kept clean and that all components are operating at their expected capacity. Most mechanics recommend a routine flush every 40,000 miles, or you can check the recommended coolant change interval in the owner's manual.

Checking coolant standards is a simple process that doesn't take long. When adding, it is important to make sure the engine is cooled down and then unscrew the expansion tank cap as the coolant runs at around 90°C. After filling, make sure to replace and tighten the expansion tank cap.

The first thing to find is the coolant antifreeze reservoir, which can usually be seen on both sides of the engine compartment under the hood and can be identified by the brightly colored liquid inside. Next, check that the coolant corresponds to the maximum and minimum level markings on the side of the reservoir. Since the coolant antifreeze tank is translucent, it should be easy to check the liquid level without unscrewing the cap, and the whole process is straightforward.

If the level of coolant is below the maximum line, this may be due to natural losses and can be added directly again. If the level is below the minimum line, it is increased to the maximum line and monitored daily.

Normally, it is 2 years or after 40,000 kilometers. However, because coolant is different from engine oil, it is easy to ignore the reason, so there are often friends who do not know after the above mentioned period or kilometers. Therefore, when your car has the following situations, you also need to check and replace the coolant in time.

There is a boiling situation when driving: under normal circumstances, due to the good cooling effect of the coolant, our car will never appear to be boiling in the middle of the road. However, due to the gradual failure of the coolant components over time, it is very easy to boil the pot during driving, especially in the relatively hot summer driving process.

Once this happens, we should find a place to stop and check and change the coolant in time.

Inexplicable lack of power in winter: After the coolant problem, the engine problem will increase significantly, and in the summer, it will basically be unable to drive. But in winter, if the coolant problem is not particularly large, then there will not be a situation where the vehicle will not be able to drive normally, but the power will be greatly reduced.

And if you don't pay attention to check the coolant, you can't find the reason for it, so when you find that the vehicle is inexplicably insufficient in power when driving in winter, don't directly complain about the car itself, pay attention to whether the coolant needs to be replaced is often the most correct choice (a friend encountered such a situation last year, the car can be used is an obvious lack of power).

Finally, I would like to remind you that although the 4S store will help us add coolant for free for life, there will still be the problem of coolant failure just by adding. So, try not to covet these cheap, and it will be better to check and replace your car when the time is right.

Automobile coolant is generally changed once every two years, or it can be said that the car should be replaced in time when it has been driving for about four to fifty thousand kilometers for two years.

At first glance, car coolant may sound like a protective measure to cool down the car engine, but in fact it has another name, and that is car antifreeze coolant. This directly tells us its use, yes, it is used to prevent the water tank or engine block from being at a low temperature for a long time in winter, and when the car is turned on, it causes thermal expansion and contraction and cracks the cylinder.

Although it also has a cooling effect, it is actually used for this purpose relatively rarely, because it is only cooled when the car engine is under high load. At the same time, the most amazing thing about the coolant is its boiling point. It is not high or low at exactly 105 degrees, which is a little higher than the boiling point of water, so it can be cooled quickly and plays an unexpected role when it is critical.

The role of coolant is not only so great, but there is no need to worry about what bad problems will occur to it, which can be said to be a necessary internal equipment for home driving.