Why does the color of car coolant change?

First of all, it is necessary to understand the coolant currently sold on the market, the current coolant is very different from the first generation of coolant, the previous coolant is basically ordinary distilled water, and today's coolant has added additional ingredients for different environmental effects, for example, in order to cope with the problem of engine corrosion, anti-rust ingredients will be added;In order to cope with the problem of cooling fluid freezing in winter, antifreeze ingredients will be added;In order to cope with the deterioration caused by the coolant not being replaced for a long time, anti-corrosion ingredients will be added, but different coolants have different differences in the ratio of these components, which is why different dyes are added to the coolant, in order to distinguish different ingredient ratios and prevent mis-addition. <>

After talking about the difference between the different colors of coolant, it is time to talk about the impact of wrong addition, because it has been said above that the composition of different colors of coolant is different, and it may cause the coolant to lose its cooling effect after mixing, for example, after the coolant containing propylene glycol is mixed with the coolant containing ethylene glycol, it will produce flocculent precipitation, which directly affects the heat dissipation effect. Coolant containing ethylene glycol mixed with coolant containing silicate can produce a highly corrosive liquid that can corrode the engine. <>

In view of the serious consequences of adding the wrong coolant, once you accidentally add the wrong type of coolant, the first thing to check is whether the original antifreeze of the car is the same as the wrong antifreeze composition, if the composition is the same, then don't worry, if the composition is different, you should contact the after-sales service of the 4S shop as soon as possible, release all the coolant, and then re-add the same color of coolant. <>

Based on this situation, it is recommended that car owners should be careful when replenishing coolant, do not add different types of coolant by mistake, bring unnecessary trouble to their cars, and if necessary, they can go to the repair shop to let professional auto repairers add.

The car has a color when it cools down because something special is added to it.

In fact, the color of the coolant is only because of the addition of different things, generally speaking, the coolant is three colors, ethylene glycol is generally green, propylene glycol is red with a little orange, and diethylene glycol is blue.

Because there is a water-soluble colorant in it, it can cause discoloration.

Normally, automotive coolant is colorless, but in order to distinguish it from water and prevent accidental ingestion, manufacturers will add some water-soluble colorants to the coolant to make these coolants appear different colors.

There are many colors of car coolant, and there is nothing too high-tech in it, just some water-soluble colorants are added.

Because there are some water-soluble designs inside, it will make the cooling produce a different color.

This is because the components in the coolant react chemically.

It should be that manufacturers will add some water-soluble colorants to the coolant.

Manufacturers will add some water-soluble colorants to the coolant to make these coolants appear different colors.

Because it contains water-soluble colorants.

The colors of engine coolant are blue, yellow, green, etc. In fact, all kinds of colors are caused by adding dyes to the main ingredient ethylene glycol, just to distinguish them from other liquids, and there are no other special use functions. The most commonly used antifreeze dye is fluorescein, also known as fluorescent yellow.

It is an orange powder, insoluble in water, soluble in alcohol, green and fluorescent when ethylene glycol is added, so it is widely used as an antifreeze pigment.

Coolant, also known as antifreeze, antifreeze, water tank treasure, etc. The main function is to protect the normal and good operation of the engine, circulate in the engine water tank, and have the functions of anti-freezing, anti-boiling, anti-rust and anti-corrosion. Most antifreeze is red or green in color to observe if it leaks or is different from other engine fluids to avoid confusion.

Replace engine coolant based on mileage or length of time, as it is difficult to visualize the extent of deterioration. If the coolant is not replaced, its inherent anti-rust quality will deteriorate, and radiators, pipes, hoses, etc. will be damaged.

Measuring the freezing point of antifreeze; Prevent leakage when replacing antifreeze; Prevent the spray of hot antifreeze from injuring people. Make sure that the original antifreeze is fully released (both the radiator and the cylinder block should be released); Guaranteed increase in the number of standards; Leave parts that won't leak on vehicle parts; Once the process is complete, confirm whether there is any leakage.

In addition to the cooling function, the engine coolant of modern automobiles must also solve four major problems: cavitation, chemical corrosion, electrochemical corrosion, and scaling. Coolant is a mixture of water and antifreeze. Due to the different water sources, their composition and cleanliness are also different.

If the coolant in the car is relatively small, you can choose to continue to add, or you can choose to replace the coolant, but you must pay attention to the model of coolant, you can not choose any brand. Coolants should not be mixed, as they are prone to chemical reactions, bubbles or precipitation. For the rubber seal will cause some damage, the coolant needs to be replenished in time after the leakage, be sure to choose the same brand of coolant of the same color, if I do not have the same brand of coolant, you can choose to supplement pure water or distilled water, do not add other brands of coolant.

It is also necessary to check the vehicle regularly during the use of the vehicle, so as to avoid affecting the normal driving. <>

In the process of maintaining the car in the 4S shop, the 4S shop of some car brands will also help the owner add coolant, in the process of choosing coolant, in addition to paying attention to the brand model, it is also necessary to distinguish according to the color. Different brands of coolant have very different formulations, and although they are the same color, they cannot be mixed. Coolant itself is a chemical product, and there are many precautions to be taken during use.

When our brand coolants are mixed together, there is a potential for chemical reactions and adverse effects on the vehicle. If you don't know what brand of coolant you're using, you can also choose to drain all the remaining coolant from your car, clean the coolant tank, and add a new brand of coolant. The brand and model of coolant also need to be remembered, so that you can buy it directly and save a lot of trouble.

Coolant also has a shelf life, in the process of purchase must be aware of the production date and shelf life, if the coolant has expired, it should also be replaced in time. Replacing the coolant is adjusted according to the actual situation, and it can be replaced if the car has reached the specified kilometer. In the process of measuring the freezing point, the coolant needs to be replaced if the value is not reached.

After the coolant of the car is less, then I think if it is not the same brand, it still needs to be replaced, if it is the same brand, then it is okay to add a little.

If the quality of this car coolant is relatively good, you can continue to add it. If you add it, you need to add the same color and the same brand, because the concentration and molecule of each brand are different.

It is best to change the car coolant if it is less, generally speaking, it is changed once every two years, it is best to change it with the same brand and the same color, because different brands, the chemical composition is not the same, and some chemical reactions may occur if they are mixed.

There are generally two colors of coolant, one is red and the other is green, and different colors of coolant can not be mixed, because different coolants, the composition is not the same, if mixed, some unexpected chemical reactions may occur, so down, it will seriously affect the cooling performance of the coolant, and even damage to the engine.

The color of the coolant has little to do with the performance of the car, but the most important thing is to remember that the different colors of the coolant indicate that different chemical ratios are applied, so if the coolant needs to be replaced, do not mix the two different colors of coolant together, which is an extremely dangerous thing.

Automotive coolant is divided into several colors, and different colors have different properties, as follows:

1. The coolant generally presents two colors, one is red and the other is green, and the coolant of different colors cannot be mixed, because the composition of different coolants is different, if mixed, some unexpected chemical reactions may occur, which will seriously affect the cooling performance of the coolant and even damage the engine;

2. The color of the coolant has little to do with the performance of the car, but the main thing is to remember that the color of the coolant is different, indicating that the chemical ratio of the application is different, so if you need to replace the coolant, do not mix the two different colors of the coolant together, which is an extremely dangerous thing.

3. There are many types of coolant, such as European coolant and Japanese coolant, the main component of each coolant is ethylene glycol, but ethylene glycol will add other chemical components according to weather conditions and other regional conditions, so that the cooling effect of the coolant is the best, so that the coolant color is not the same.

I remember when I first added it, it was green. After running this for a while, it's a little yellow, is it normal? But after a long period of use, there will be other substances in it, which will affect the effect at this time, at this time we have to consider replacing the antifreeze, in fact, when the owner usually checks the seat, you can see how much antifreeze is, so that it can be made up in time, and the replacement time is generally 2-3 years when it will be replaced, and the best replacement of the antifreeze is also the same color as the original, so it is better.

It is normal for antifreeze to change color for the following reasons: 1. Some coolants are added with pigments, which are oxidized after a period of use; 2. The coolant has changed internally at high temperatures; 3. This phenomenon should be normal and has no effect on the engine. Discoloration of the coolant is normal, but if it is reduced to a minimum, it will have an impact on the engine because the pressure in the cooling system changes.

It is best to put away the coolant and replace it from the new, it is recommended to replace the coolant with the guarantee of the regular big brand, and the cooling system must be cleaned when replacing. The quality of the coolant is not good, and there is a possibility of corroding pipes and parts. It is recommended to change the brand coolant, Caltex Mobil Castrol are good, Caltex is the most cost-effective.

Because of the different stains, the antifreeze will end up in different colors, and the common colors are green, red, and blue. Another component of antifreeze is additives, which contain few but many ingredients, including antiscalants, anticorrosive agents, defoamers, dyes, antifungal agents, buffers and other ingredients. Antifreeze with different ingredients or colors must not be mixed, because if you mix antifreeze with different ingredients, the antifreeze will react chemically and cause the antifreeze to fail.

If the antifreeze is the same and the color is different, it cannot be mixed, and the chemical composition of the additives is different for different colors or different brands of antifreeze, and if it is mixed, a chemical reaction is likely to occur between a variety of additives, resulting in the failure of the additives. The judgment standard measures the advantages and disadvantages of antifreeze mainly in the following two points: first is the antifreeze effect, the freezing point of water is 0, the general ordinary antifreeze can reach -40, and the high-quality antifreeze should be able to reach about -60, which is an important indicator to calibrate the quality of antifreeze; The other is the boiling point of antifreeze, the boiling point of water is 100, and the antifreeze should reach at least 108 or more, that is to say, the lower the freezing point, the higher the boiling point, the greater the temperature difference, and the better the quality of the antifreeze.