What is the difference between antifreeze colors and how many colors of antifreeze are there?

The color of antifreeze is artificially added and cannot be used as a criterion to evaluate its merits. The choice of antifreeze should be based on the temperature in the area. Generally, it is 10 degrees Celsius below the minimum temperature in the region.

At present, antifreeze is generally injected into the cooling system of automobile engines. What is the role of antifreeze and what problems should be paid attention to in use?

The four main functions of automotive antifreeze:

Antifreeze function Antifreeze, as the name suggests, has an antifreeze function. However, the freezing point of various antifreeze liquids is different, which is determined by different regions and different ambient temperatures. The freezing point of today's antifreeze is generally between -15 and -68.

Anti-corrosion function.

The engine cooling system contains five types of metals, namely cast iron, aluminium alloy, steel, copper and solder for tank welding. Generally, the cylinder block of a small car is made of cast aluminum, the cylinder block of a large truck is made of cast iron, and the water tank is mainly made of copper and brass. Antifreeze comes into contact with these metals all the time, so it must have anti-corrosion function, and inferior antifreeze is extremely corrosive to metals.

When some water tanks use antifreeze, their welds crack and drip because of the severe corrosion of the solder by the antifreeze. High-quality antifreeze can better protect the water tank than water, and prolong the life of the engine.

Anti-scaling function Many drivers drain the antifreeze in the summer and add it to the tap water, which has many minerals in the tap water, and after heating and evaporating, these minerals form scale and deposit on the metal surface. Due to the formation of scale, the heat generated by the engine can not be transmitted to the antifreeze in time, so that the temperature of the cylinder liner increases, and the matching gap between the cylinder liner and the piston is improper, resulting in the abrasion and wear of the cylinder liner and the air ring, and in serious cases, the piston will be stuck, which is fatal to the engine. If the scale is generated in the tank, it will affect the heat dissipation effect of the radiator, causing the water temperature to rise and "boil", while the high-quality antifreeze is made of distilled water and added with anti-scale additives, so it will not produce any scale.

High boiling point function.

A high-quality antifreeze should have a good waterproof box "boiling" function, which requires it to have a high boiling point. Now the boiling point of antifreeze is generally greater than 105, if you use high-quality antifreeze, there will be no "boiling" phenomenon.

Is there anything special about the different colors of antifreeze?

Is there anything special about the different colors of antifreeze?

Hello, I am your exclusive technician, attentive, careful, attentive to answer your car questions, for you to find the corresponding problem solutions and solutions, Mercedes-Benz antifreeze has two colors: blue and red. In general, antifreeze before 2015 is blue, and after 2015 it is red.

When replacing or adding antifreeze, it is best to see what color the antifreeze of your vehicle is, and try to use the same brand and model of antifreeze. If you notice discoloration or sediment in the antifreeze, replace and clean the system promptly. This antifreeze should not be mixed with different colors of coolant, otherwise the cooling system will not function properly.

Different colors of coolant have different compositions, and mixing them may cause chemical reactions. When you buy coolant, you must choose the right product for your car.

The efficacy is the same, that is, the formula of each manufacturer is different, and the materials added are different, so the color is also different. Do not mix antifreeze of different colors and manufacturers to prevent adverse chemical reactions and cause functional failure.

Color is just a symbol, unlike water without color, which has nothing to do with quality.

There are many colors, which have nothing to do with quality, but are just a sign that each manufacturer differentiates itself from different antifreezes.

Antifreeze generally has three colors, antifreeze has ethylene glycol, propylene glycol and glycerol type, the current antifreeze on the market is mainly based on ethylene glycol, ethylene glycol boiling point is high, freezing point is low, antifreeze is also added with dye, commonly used is fluorescein, added to ethylene glycol, the color is green. In addition, the color added to ethylene glycol is pink with rhodamine B stain, and the color added to ethylene glycol is blue with methylene blue stain.

The main function of antifreeze is to protect the engine to operate normally, circulate in the engine cooling system, and play the role of antifreeze, cooling, anti-scaling and other anti-corrosion.

The function of antifreeze.

In addition to antifreeze, antifreeze has several advantages:

Anti-corrosion function: The engine and its cooling system are made of metal, including copper, iron, aluminum, steel and solder. These metals come into contact with water at high temperatures, and over time, they will be corroded and rusted.

Antifreeze not only does not corrode the engine cooling system, but also has anti-corrosion and rust removal functions.

General use: automobiles, trains, diesel locomotives, tractors, ships, engines, water tanks and various mechanical equipment, diesel engines, gasoline engines and other cooling systems are used as coolants. It has a variety of functions such as anti-freezing, anti-boiling, anti-corrosion, and waterproof.

The boiling point of water is 100, and the boiling point of high-quality antifreeze coolant is usually 110 above zero, so that in the summer, antifreeze coolant is more difficult to boil than water. The biggest headache for drivers with water as coolant is the problem of scale, which adheres to the metal surface of the water tank and water jacket, making the heat dissipation effect worse and worse, and it is also difficult to remove. The high-quality antifreeze is made of distilled water and added with anti-scale additives, which not only does not produce limescale but also has the function of descaling.

Of course, if your tank is very thick with limescale, it is best to thoroughly wash it with tank cleaner before adding antifreeze. Like water, it has the advantages of high specific heat, high latent heat of evaporation and convenient replenishment. When the ambient temperature is below zero, the water in the cooling system will turn into ice, and the parts of the cooling system will be in danger of being expanded and cracked.

There are 3 kinds, which are pink, green, and blue, and you can come to the car school to learn more about them.

There are three common colors, red, green, blue, and yellow. The different colors of the antifreeze also mean that the composition of the antifreeze is not the same, if the antifreeze contains glycerin, then the antifreeze will be red, if the antifreeze contains ethylene glycol, the antifreeze will appear green, and if the antifreeze contains propylene glycol, then the antifreeze will appear blue or yellow. By using these colors, it is possible to determine the special ingredients contained in the antifreeze.

The role of antifreeze.

Antifreeze is literally antifreeze, in fact, antifreeze is also called coolant, and it also has a cooling effect. During the use of the car, the engine is in a high-temperature running state, if the car engine has been working at high temperature, it will cause engine damage or even paralysis in a short time. When antifreeze is added to the cooling system of the car, the heat of the engine will pass through the cooling system, and the heat will be reduced and then dissipated to the surrounding area, which will play a cooling role and avoid boiling the pot.

In addition to antifreeze and cooling, antifreeze also has anti-corrosion and anti-scaling effects. Antifreeze is added to the antifreeze to prevent corrosion of the metal parts of the cooling system. Most of the fouling is formed by ions in the water, and the water that acts for antifreeze production is deionized and softened, which has an anti-scaling effect.

Different colors of antifreeze, their effects are the same, antifreeze plus cooling, will not produce different effects due to different colors. Moreover, color is only a factor for manufacturers to distinguish, and does not represent a special effect.

The reason why antifreeze has so many different colors is that the key is the different formulas of various antifreeze manufacturers. In terms of composition, generally speaking, ethylene glycol is green, propylene glycol is red with a little orange, and glycerol is blue. At the same time, in order to prevent confusion with other liquids and prevent people from eating by mistake, many manufacturers will also add different color formulas to distinguish them.

Since antifreeze is a chemical product, and the chemical formula of each manufacturer is different, it is possible for chemical products to react with each other, and the same is true for antifreeze. If the formula of antifreeze is mixed, it may produce different chemical elements, which may damage the car, and even produce toxic gases, endangering people's lives, so it is best not to mix different colors of antifreeze.

Is there anything special about the different colors of antifreeze?

60 seconds of small science, the color of antifreeze is different!

Under normal circumstances, pigments only account for a few tenths of a hundred thousandths of the total, and have no effect, and are generally red, yellow, and green. Because the national standard does not have mandatory requirements for color, it is no problem for each manufacturer to have a different color. If you are worried that the replacement of the antifreeze will react with the old antifreeze, ask the master to blow with compressed air for a while and empty the old one.

The color of antifreeze has different colors, different costs, different boiling points, etc.

Ethylene glycol-based antifreeze will appear green, diethylene glycol antifreeze will be blue, and propylene glycol antifreeze will be red. Ethanol is easy to ignite and evaporate, and its content should not exceed 40 when formulating. It is not suitable for use in the cooling system of diesel engines with high operating temperatures, and the content of glycerin (glycerol) in water should be quite large to obtain low freezing point antifreeze.

Glycerol (glycerol) has a freezing point of -17 and a boiling point of 290, and the lowest freezing point when mixed with water can be reached. The freezing point of ethylene glycol is the boiling point, and the freezing point when mixed with water can reach as low as -68. Antifreeze is an important guarantee for maintaining a stable temperature of the engine, and it usually circulates in the engine water channel and heat dissipation tank.

Helping the engine dissipate heat, it can be said that it is the porter of engine heat.

Antifreeze action

Generally speaking, the antifreeze itself is transparent, and the manufacturer will add some dyes to enhance the appearance of the antifreeze during production, which is roughly red, blue and green. In general, blue antifreeze is the most common. The reason why the liquid is blue is because of the high proportion of the chemical component diethylene glycol.

The green color indicates that the proportion of ethylene glycol in the antifreeze is more, and the red color means that the proportion of propylene glycol is simpler.

In fact, no matter what color antifreeze, their effect is the same, to prevent the engine from overheating when used in summer, and to prevent the engine temperature from freezing too low in winter, and the radiator from freezing and cracking. When red antifreeze is mixed with green antifreeze, there is a possibility of a chemical reaction because the main components of the two are different. This can lead to sedimentation or bubbles in the tank where the antifreeze is stored, causing wear and tear on the cooling system and rubber seals.

The difference in the color of the antifreeze is as follows:

The color of antifreeze is usually green, blue, pink, and the main components of antifreeze are methanol, ethylene glycol, propylene glycol, glycerin, silicate, etc., while general ethylene glycol is green, propylene glycol is blue, and glycerin is pink.

The main function of antifreeze is to protect the normal and good operation of the engine, circulate in the engine water tank, play the effect of anti-freezing, anti-boiling, anti-rust, anti-corrosion, etc., most of the antifreeze color is red or green, in order to observe whether it leaks, or distinguish it from other liquids of the engine, to avoid confusion.

Precautions for using antifreeze

1. Choose antifreeze according to the different requirements of the vehicle. Under normal circumstances, imported vehicles, domestic production vehicles and high-end vehicles should use permanent antifreeze (2 3 years), ordinary vehicles can use direct use antifreeze, and demineralized water can be used in summer.

2. Choose antifreeze according to the number of vehicles and the degree of concentration. Units and departments with more vehicles and relatively concentrated can choose small packages of antifreeze mother liquor, which has stable performance and is convenient for transportation and storage due to the use of small packaging.

3. Generally, antifreeze with anti-rust, anti-corrosion and descaling capabilities should be selected. The most important thing about antifreeze is to prevent rust. Therefore, it is advisable to choose brand-name products, which are added with preservatives, corrosion inhibitors, antiscalants and cleaning agents, and the product quality is the best.