Before parsing the reason for the distinction of anti -freezing coolant，First of all, you need to know a knowledge point。

Anti -frozen coolant with the same basic ingredients but different colors，There is a general mixing in the real maintenance market，But it will not cause damage to the engine。"Anti -Frozen fluid used by the car&Cooling "is the same solution，Both of them are right，Because it has anti -freezing and also has the dual function of cooling (temperature control)，To simplify reading, referred to as "Anti -Frozen"。The main ingredients of this solution include alcohol substances，Two types of water，Anti -corrosion agent and [color agent]; if you want to understand why the antifreeze has different but all colorful colors，First of all, understand the characteristics of three types of alcohol -type substances。

01 core component of antifreeze

Alcohol glycol propylene glycol propylene glycol for making anti -freezes is these three types，But it is generally "three selected one"。

Among them, menol (commonly known as glycerin) is used at least，Due to its large viscosity and high manufacturing cost，The use of this raw material for the "water pump" in the cooling cycle system in the internal combustion engine will be a test; unless the original vehicle design standard is matched with a vehicle of the oblong alcohol -based anti -freezing fluid，Other vehicles are not recommended to switch to this kind of antifreeze。

As for propylene glycol, it is rarely used due to high manufacturing costs，or a small amount added to ethylene glycol as the core raw material，So what are the advantages of ethylene glycol?

[Ethylene glycol], of course, is low in manufacturing costs，Low as low as non -freezing fluid，This material is also used for a few dollars of glass water; and the boiling point of ethylene glycol is as high as 197.4 ℃，In the running state of high -temperature and high pressure internal combustion engines，The flow of antifreeze can be continuously absorbed through ethylene glycol，It is guaranteed that the water part of the water can not be absorbed to achieve boiling heat to ensure stable cooling。

At the same time, there is still a very low freezing point after the fusion of ethylene glycol and water，Start with pure water without ethylene glycol at all，Percent mixing from a range of 1%to 60%will gradually decrease the freezing point of the solution。High 6: 4 mixed can make the freezing point lower as low as ﹣48.3%℃，This standard can meet the needs of vehicles in most areas;，So in areas with different temperatures in winter，Anti -frozen liquid glycol for sale will be within 60%。

Key: The main ingredient of ethylene glycol -based anti -freezing solution is actually water，But the water is divided into two categories。

Divericated water Remoil Water Ordinary Raw Water (Covering Purifying Water) contains more magnesium hydroxide and calcium carbonate，These two substances will be precipitated in high temperature environments，The generated material is commonly known as "water -alkali"。If the antifreeze water channel of the internal combustion engine is full of this substance，Anti -freezing solution cannot flow normally, and the opportunity to mobilize high temperature damage; so the water used in the antifreeze must be removed or ionic water after removing impurities，After mixing with an unlimited ethylene glycol, it becomes an antifreeze，butseabet ioPlease see the second section.

02 Two reasons

[Warning · Avoid error drinking] is one of the core factors that must be used with colorful colors!

Ethylene glycol is a very toxic chemical，The proportion seabet ioof the aqueous solution after the fusion of water reaches the standard of "1.6g/kg"，As long as you drink it by mistake, it may cause death! This standard is that there is 1.6 grams of ethylene glycol per kilogram of water solution，Even the proportion of low -proportion antifreeze ethylene glycol will not be so low。

So you need to use bright colors as a warning，Just after the colors of various beverages are getting richer and richer，This warning method does not seem to have the ideal effect。Then the driver must use the use of antifreeze and glass water，Putting the part that is not used up properly，Avoid contact with children and the elderly。

[Fault · Efficient recognition] is the original intention of different colors to distinguish between antifreeze!

Different car companies in different cars or in the same area，Its supply chain system may be overlapped but may be completely different; to be honest, the glass water and antifreeze purchased by some car companies will be a certain brand，Glass water and antifreeze purchased by other car companies are other brands。When different suppliers produce these two solutions，The coloring agent suppliers they use are different，So the color will have a difference。

So some vehicles use red glass water (really exist)，Use yellow or green to use anti -freezing fluid，Otherwise, how to quickly find the fault point through the color when the fault is leaked? Conversely, some vehicles use blue ratio water，Anti -frozen solution must be yellow or red，This is the reason why the antifreeze is also distinguished by many colors。

As for whether the antifreeze can be mixed is a controversial topic，Some drivers think they should not be mixed，Because different ingredients may have a chemical reaction; however, ethylene glycol and propylene glycol can be mixed，Ethylene glycol and propylene glycol can also dissolve each other，Pigbolly and propylene glycol can also be dissolved and there will be no reaction。As for the type of anti -corrosion agent, it is basically the same，So Seabetthere is nothing to worry about。

But there are certain differences in the boiling point and viscosity of these three substances，Mix well is the same basic type; this is the maintenance market often mixes vehicles，In fact, there is no problem for the reason。