Who changed the antifreeze themselves and what color the original car was

Hello: Different vehicle manufacturers will have different replacement cycles for coolant, but most of them recommend that car owners replace the coolant every 2 years or 40,000 kilometers, because the driving situation of each car is different, you can choose to replace it according to the actual use, and check the use of coolant in time. If the coolant is found to be lower than the minimum scale value (the normal value of coolant should be between max and min), it should be added in time, otherwise the cooling performance of the engine will be affected.

Precautions for adding coolant:

1. Coolant can not be mixed: it is best not to mix different types of coolant, so as not to cause chemical reaction, precipitation or bubbles, which will cause damage to the rubber seal, which will cause water leakage at the water seal of the water pump and welds, and cause engine damage in serious cases. However, the current general-purpose coolant solves this problem to a certain extent.

2. The human body should not touch antifreeze: antifreeze and its additives are toxic substances, do not touch them with your hands, and place them in a safe place after use. The unused coolant should not be used again, and the waste coolant should be disposed of in strict accordance with the relevant regulations, otherwise it is easy to cause chemical reactions.

3. Necessary inspection before filling: Before filling coolant, the engine cooling system should be thoroughly inspected, and if there is leakage, it should be repaired in time before adding coolant.

Fourth, it is recommended not to add water to the coolant: if tap water is added to the cooling system, it will affect the normal operation of the cooling system due to freezing in winter, and even cause the freezing and cracking of the engine and water tank.

Extended information: The full name of coolant should be called antifreeze coolant, which is coolant with antifreeze function, and it can be seen from the name that it has two main functions: the first is antifreeze, and the second is cooling.

Many people think that coolant is only used in winter, and obviously this statement is wrong, coolant is not just used in winter, it is used all year round. So whether it's cold or heat, cars can't do without coolant. Proper use of coolant not only protects the engine's cooling system and improves heat dissipation, but also improves engine efficiency and extends its service life.

Hope it helps!

New cars do not need to change antifreeze, the antifreeze when the vehicle leaves the factory, the freezing point is generally about minus 40 degrees, generally even if the car has been driven for two years, the freezing point value of antifreeze loss can rise to about minus 30 degrees.

The new car does not need to change the antifreeze within three years, the original antifreeze is better, the new car does not move anything for three years, and it is enough to change the oil, oil filter, and air filter when it reaches a certain number of kilometers.

In the case of a new car, generally speaking, there is no need to consider replacing the antifreeze, but the antifreeze should also be checked, but if the new car has a long inventory period and the landlord has not replaced it, then it can also be replaced as appropriate.

The color of the antifreeze cannot be changed because the original antifreeze has a fixed color, and changing the color may cause the antifreeze to not function.

Types of antifreeze:

1. Ethylene glycol antifreeze.

Ethylene glycol is a colorless, slightly viscous liquid, the boiling point is, the freezing point is, and can be mixed with water in any proportion. After mixing, the freezing point is significantly reduced due to the change in the vapor pressure of the cooling water. The degree of its decrease decreases with the increase of ethylene glycol content within a certain range.

2. Diethylene glycol antifreeze.

Diethylene glycol - water antifreeze, not easy to volatilize and ignite, and less corrosive to metals, but the effect of diethylene glycol in reducing the freezing point is lower than that of ethylene glycol, and when preparing antifreeze with the same freezing point, the dosage is larger than that of ethylene glycol, and the heat conduction efficiency decreases. In order to reduce costs, many manufacturers will mix ethylene glycol and diethylene glycol.

Hello dear, the red antifreeze of the original car has been replaced with a green one. First, as long as the relevant antifreeze discharge is relatively clean, there is no problem in replacing it with green. The second is that the normal vehicle antifreeze replacement cycle is about two years or 40,000 kilometers, and it is recommended to replace it in time when it reaches the specified number of years and kilometers.

The third situation is the relevant antifreeze, if the color is changed, it must be thoroughly discharged, if the discharge is not particularly thorough, the relevant color will also have a certain mixture. However, it generally has little impact on the vehicle's cooling system. Hello, I hope my Changpeng can help you, I wish you a happy life, happy and happy, Qingqin Douchun will stay forever, if you have any questions, you can consult at any time, I will reply to you as soon as possible.

It is possible to replace them all, but they cannot be mixed together. Therefore, if you want to replace the green coolant with the red coolant, you must make sure that the green coolant is cleaned. The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function.

Antifreeze prevents coolant from freezing and cracking radiators and freezing engine blocks or covers when the coolant freezes when parking in the cold winter.

Coolants contain many additives, such as corrosion inhibitors (anti-corrosion additives), defoamers, colorants, etc., among which colorants are the determining factor in color. A non-toxic water-soluble colorant is added to the coolant, which is different from most cooling waters, and it is convenient to observe whether the coolant in the cooling system is leaking; At the same time, it acts as an indicator to monitor the pH change of the coolant.

In addition to the above-mentioned role, the most important point is to serve as a warning for personal safety reasons. In most people's perception, most of the brightly colored liquids are basically poisonous, so their chemical composition also makes them look very beautiful, these liquids are poisonous, and they should not be drunk in the stomach. Beware of accidental ingestion poisoning.

The role of colorants is only visual differentiation, not performance. Whether it is red antifreeze or green antifreeze, the effect is basically the same, and the color is not necessarily related to the quality of the coolant.

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