How often should car coolant be changed?

The engine coolant is changed every 2 years. Coolants have a shelf life, and most coolants have a shelf life of about 2 years, and once the shelf life is exceeded, it must be replaced. It is also said that when a new car is bought, the original factory adds coolant, and it must be replaced once within 2 years of application or within 40,000 kilometers.

It is not too difficult to change the coolant, and it can be replaced by itself, if it is inconvenient, it will cost about 200 to change it once in the store. If you replace yourself, you can meet the daily application requirements by buying a universal coolant, the price of 4 liters is around 7 yuan, and the volume of the general coolant surge pot is also around 4 liters, and you can buy well-known brands such as Red Star, Shell engine oil, and the Great Wall.

The coolant is not easy to increase the shelf life due to unopened market, and the shelf life is used to judge the next replacement interval. When replacing the coolant, it must be noted that the hot car cannot be filled immediately to prevent scalding and blistering; Looking for the water inlet valve of the refrigeration storage tank, generally in the chassis, the original coolant must be put neatly, the water storage tank and the cooling system must be cleaned with cold water, and then add new coolant.

Generally two years or 40,000 kilometers of antifreeze.

It is replaced once every 4 or 5 years, mainly depending on the quality of the coolant.

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),

Hello answer, glad to answer for you! Generally, it is five years, because the water tank will age after five years, which will affect its effect, so it is recommended to replace it once every five years. The water tank is an important part of the water-cooled engine, as an important component of the water-cooled engine heat dissipation circuit, it can absorb the heat of the cylinder block and prevent the engine from overheating due to the large specific heat capacity of the water, and the temperature does not rise very much after absorbing the heat of the cylinder block, so the heat of the engine passes through the liquid circuit of cooling water, and the water is used as the heat carrier to conduct heat, and then dissipates heat in a convection mode through a large area of heat sink to maintain the appropriate working temperature of the engine.

When it comes to how long the car water tank can last, then it must depend on the situation, the general supplies will have a factory service life, and then there will be external factors to shorten its service life, the factors that affect the service life of the car water tank are not replaced in time, no coolant plus tap water or mineral water, external factors collision damage, these factors will affect the service life of the car water tank.

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.

Generally, it needs to be replaced once in two years or about 30,000 kilometers. It's good to check whether the liquid level is enough.

The real name of antifreeze is car coolant, it has anti-freezing, anti-boiling, anti-scaling, anti-rust and other functions, of which antifreeze is only one of its functions, it is not only used in winter, it is not recommended but must be used throughout the year, the above functions are not available in water, it is generally recommended to replace every two years, there are also three years to replace (Audi and other German cars), but choose the brand, imported brands such as: Total, all the way, Shell, Mobil, Castrol, etc., domestic brands such as: Great Wall, Kunlun, Bluestar, Chefu, rainbow, etc., miscellaneous brands are very cheap but generally unqualified.

As for the capacity of the water tank, it varies from car to car, and generally there is a scale on the water tank and device, which is added to the upper engraved line.

Hello 2 years 40,000 kilometers replacement [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The coolant is replaced in about 2 years.

During the normal maintenance of the car, the engine antifreeze needs to be replaced every year of driving. The full name of the coolant should be called antifreeze coolant, which means coolant with antifreeze function, antifreeze can prevent the coolant from freezing and bursting the radiator and freezing the engine block when the coolant is stopped in the cold season, but we have to correct a misunderstanding, antifreeze is not only used in winter, it should be used all year round.

The coolant is composed of three parts: water, antifreeze and additives, and can be divided into alcohol, glycerin, ethylene glycol and other types of coolant according to the different components of antifreeze.

Alcohol-based coolant is to use ethanol (commonly known as alcohol) as antifreeze, which is cheap, has good fluidity, and has a simple preparation process, but has a low boiling point, easy evaporation loss, easy to increase freezing point, flammable, etc., and has been gradually eliminated.

Glycerin coolant has high boiling point, low volatility, not easy to ignite, non-toxic, and less corrosive, but the effect of reducing the freezing point is poor, the cost is high, and it is expensive, which is difficult for users to accept, and only a few Nordic countries are still using it;

Glycol coolant is prepared by using ethylene glycol as antifreeze and adding a small amount of anti-foam, anti-corrosion and other comprehensive additives. Because ethylene glycol is easily soluble in water, it can be arbitrarily prepared into a variety of freezing point coolant, the lowest freezing point can reach -68, this coolant has a high boiling point, low foam tendency, good viscosity performance, anti-corrosion and anti-scale characteristics, is a more ideal coolant, at present, the engine used at home and abroad and the market is almost all this glycol coolant.

In general, it is recommended to replace the coolant every two years or 40,000 to 60,000 kilometers. If you often know that the dismantling is driven in a high temperature environment, or the vehicle is used frequently, it is recommended to shorten the replacement cycle. If you find that the coolant of the car is discolored, turbid, foaming and other abnormal conditions, you also need to replace the coolant in time to avoid affecting the engine work.

Hello dear! Thank you for waiting, the antifreeze of the car is in the later use, it is recommended that you replace it every two years or 40,000 kilometers. Like the measurement of antifreeze of the car is the boiling point of the antifreeze and the change of the active ingredients, like the antifreeze, in the use of such as Ling Shou Guo for more than two years, then the virtual spike is prone to deterioration and corrosion of land and water, if the mileage is more than 40,000 kilometers, then there will be some impurities, so it needs to be replaced in time.

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