Each vehicle has a cooling system. It serves to remove heat generated during engine operation to the outside. In winter, the operation of the cooling system helps to heat the passenger compartment. Today we will consider and also find out the differences in shades of liquids.

Characteristic

First of all, we note that any whether it is foreign or russian production, is colorless. This factor does not affect the quality in any way. "But why, then, are they multicolored?" - you ask. Which antifreeze to choose - red, green, blue? What is the difference? Manufacturers classify their products in this way. Any liquid is distinguished by the presence of components that prevent it from freezing when low temperatures... This figure can range from minus 15 to minus 40 degrees Celsius. Below we will look at the differences.

What is the difference

Manufacturers mark antifreeze in different colors - red, green, blue. What is the difference?

Red has a high crystallization threshold. It does not freeze at temperatures up to minus 40 degrees. At the same time, it has a high service life - up to five years. The next type is green. These antifreezes freeze at minus 25 degrees Celsius. Their service life is three years. And the last category is blue (aka "antifreeze"). Serves least of all - 1-2 years. But the temperature threshold for freezing is one of the highest and is minus 30 degrees Celsius.

Groups

Thus, manufacturers assign each color to a certain class. There are several of them:

Each group has its own flavor. Below we will look at antifreeze by color and find out the features of each category.

Green

This antifreeze belongs to the first group. In its composition, it has chemical and organic additives. The basis, like everyone else, is ethylene glycol. Also, the green antifreeze contains silicates and a small percentage of carboxylic acid. This mixture, as it were, "envelops" all the insides of the cooling system with a film and actively fights against the centers of corrosion.

Among the advantages of using such antifreeze, it is worth noting precisely its high anti-corrosion properties. Thanks to the film, the system lasts long enough and does not rust in different operating modes. Among the disadvantages is the low service life, which is three years. It is also necessary to note the low heat dissipation, which is impeded by the same film. At the end of its service life, antifreeze starts to form deposits in the cooling system. If not replaced in time, it can clog fine channels in the engine.

Red

This modification (G12) is more advanced.

Here in the composition - organic additives and This mixture does not form films inside the channels, which improves heat transfer. It also localizes rust due to the action of carboxylic acid. Over time, the red antifreeze will not precipitate. On sale it is much more common than green. Among the disadvantages, it should be noted that they do not protect against oxidation aluminum radiators... But if you have copper or brass, red antifreeze is the best choice.

Violet

Few of us have seen them live, but such means also exist. They appeared relatively recently - in 2012. They belong to the 13th group. Purple represents lobrid antifreeze that does not contain ethylene glycol. It is believed to be highly poisonous. But how does it provide heat removal if the main composition is without ethylene glycol? Instead, manufacturers use the more environmentally friendly propylene glycol. It is less toxic and environmentally friendly. As for the other components, violet antifreeze contains silicates and carboxylic acid, already known to us as an anti-corrosion agent in the previous groups.

Blue

This is an antifreeze we all know, which appeared in the distant 70s of the last century. It contains 20 percent distilled water. Everything else is ethylene glycol. In view of this proportion, antifreeze has a temperature threshold of minus 30 degrees Celsius. By the way, all other "colored" analogs include only 5 percent distilled water.

Therefore, antifreeze often boils. Already at 110 degrees, it becomes ineffective. And if we consider that some engines of foreign cars have working temperature about "hundreds", then using this tool in them is simply dangerous. This is indispensable Therefore, antifreeze is only suitable for domestic cars, no more. And its service life is up to two years. Over the years, its heat dissipation properties decline. The same red antifreeze “cures” without problems for five years. But in terms of cost, it is 50-80 percent more expensive.

Can I mix different colors of antifreeze?

So, let's imagine a situation: waking up, you go to the garage and check the coolant level. You open the lid, and it is at a minimum. What to do? Can I mix different colors of antifreeze? It is absolutely impossible to do this.

And even if the color of the antifreeze is the same. The properties of each manufacturer may vary significantly. Why you can't mix antifreeze different colors? This action can disrupt the composition and change the proportion of additives. Because of this, the liquid will foam. At the same time, the heat dissipation will be minimal, and if you do not notice the problem in time (which happens in 90 percent of cases), you can easily overheat the engine. There is no need to experiment and ask the question “what antifreezes can be mixed”. The answer is the same - you can't, even if the colors are the same.

Dilute correctly

What to do if the level in the tank has dropped to a minimum? It is expensive to buy a canister of new antifreeze; to take it in a small “topping up” egg-bottle is fatal to the engine. But since all antifreezes contain distilled water, we will dilute it with it. The proportion should not exceed half. That is, 50 percent ethylene glycol - 50 percent distilled water. This is ideal if you do not need to top up. a large number of liquid into the reservoir. As a rule, it disappears from it over time. What happens if you mix antifreeze with water? Its presence does not change the composition and properties of the coolant. The balance of additives is not disturbed, the temperature threshold is not increased. However, if you pour more than a liter of water, on the eve of winter you need to make a full one. In large proportions, such a mixture quickly freezes. This must be taken into account. If you added no more than 300 milliliters of distilled water to the tank, you can do without it in winter.

Other hazards

Now we know the answer to the question "can antifreeze of different colors be mixed?" To do this, use only distilled water. There should be no talk of any tap liquids. It will not only worsen the properties of antifreeze, but at the first boil (which will happen after 20 minutes of operation of such an engine), it will develop scale.

It is very difficult to eliminate it. The process is accompanied by regular flushing and dismantling of the radiator. In the worst cases, scale clogs up the small channels. Never use tap water. Distilled only.

Conclusion

So, we found out whether it is possible to mix antifreeze of different colors and what are the differences between such fluids. When buying new coolant, remember that any color is the manufacturer's choice. Sometimes the composition of liquids of the same color can differ significantly. Take a close look at the group to which the product belongs. Also consider the make of your car. If this foreign car, you should not pour antifreeze into it, no matter how expensive it is. And keep a can of distilled water close at hand to maintain the coolant level.

Some people ask themselves the question: “I've heard the opinion that you can mix blue with green, but not with red”. In fact, it depends on which green antifreeze to interfere with, and with which blue.

Mix red and green antifreeze.

On the other hand, or the G30 package, they mix perfectly with the blue-green G11 Wagovsky, which is the main representative of the G48 package, we just get a dark brown color at the output.

G12 + specification

Specifically, the G12 + specification allows mixing with silicate-containing antifreezes without precipitation. Coolant G12 without “+”, which is also most often red, does not mix with blue-green. Therefore, in any case, the color of antifreeze does not affect its properties, but the specification is required.

Organic antifreeze

In fact, the liquid can be orange and red, and sometimes it is not miscible with the yellow inorganic. First of all, the protection against corrosion and cavitation is assigned to carboxylic acids. Accordingly, all our protection is organic. The liquid contains neither silicates nor phosphates.

See details description

The main advantages of organic antifreeze.

It does not create such an anti-corrosion package, does not create a continuous film on the surfaces of contact antifreeze and metal, that is, on the surfaces of the internal radiator in the engine cooling jacket, additives work only where there are micro foci of corrosion. They are triggered only as needed, only where there is a problem. Accordingly, these antifreezes serve for a long time.

Modern hybrid. Japanese antifreezes.

If we take modern hybrid ones, then 2 schools have appeared here. These are the so-called hybrids the latest generationwhich appeared later organic. This is where there is a full-fledged organic antifreeze, where additional protection is provided by the addition of inorganic compounds, such as modified silicates, or the latest Japanese antifreezes. It can be a complex phosphate-containing organics, and a combined package is obtained. What are the pros? Organic antifreezes work best on aluminum, and the protection of ferrous metals is weaker. They work amazingly on any surface. Since they combine both options of inorganic, organic protection at once. But unlike the first generation, they do not create a thick film. The film is created where there is a micro focus of corrosion, it is neutralized by organic matter, organic additives.

In this case, from above, an inorganic antifreeze creates a thinnest film that closes these areas of micro foci of corrosion. As a result, organics are also consumed less. In Europe, the most popular antifreeze based on the G40 package. He, according to the VAGA marking in 12 2 + a, respectively, has the colors: bright yellow, bright green and bright purple, and bright green is precisely the passenger antifreeze for Mazda.

Can I mix green antifreeze with blue

If we take a bright green European antifreeze, then it has a completely different chemistry. Therefore, when they say: “I will mix blue with green, and I will not have any problems, I want to ask the question: And green, which one will we take?” And if it is “phosphatic”, and we add European blue-green to it? minimum, we will lose most normal work anti-corrosion package. Some antifreezes, when mixed in this way by color, can give a soluble residue.

In this case, the problem with the water pump oil seals, the problem with clogging of the radiators, as they say, is guaranteed. Some people ask themselves the question: Returning to the first question: “I heard the opinion that you can mix blue with green, but not with red”. In fact, you yourself see what it depends on which green and which blue.

Antifreeze is a liquid that does not freeze at very low temperatures. Due to the existence of liquids of different colors, users often ask a question about them: is it worth it and whether it can be mixed. Red and green antifreeze is far from the only one on the market today, but one of the most popular. Therefore, it is appropriate to consider the dilemma: is it possible or not to mix red antifreeze with green?

Characteristics of the composition of various groups

One liquid cannot satisfy all the requirements and desires of buyers in the modern market. That is why manufacturers have focused on the creation of various antifreezes, which are fundamentally different in their composition of functional butts, and as a result are aimed at solving and neutralizing various problems. They should be divided into the following groups:

• Carboxylate antifreezes G-12, G-12 +
• Hybrid - G-11
• Lobrid antifreeze G-12 ++, G-13
• Traditional

The main feature of the first group is the presence of carboxylate inhibitors in their composition, obtained through the use of organic, that is, carboxylic acids. They are used to combat corrosion. Such organic inhibitors do not form a single protective layer and do not act on the entire surface of a particular system, they are directed to one place, the so-called center of corrosion initiation and formation, and form a protective cover only 0.1 micron thick.

Carboxylate substances

Carboxylated fluids have the longest lifespan, bordering on 5 years. They better perform the function of combating corrosion and cavitation, as a result of which they guarantee an optimal level of cooling of the vehicle engine.

• A special feature of hybrid antifreezes is that they include not only organic, but also inorganic inhibitors.
• According to European technology, this is silicate, according to American technology, it is nitrite, and according to Japanese technology (as well as Korean one), it is phosphates.
• The term of use of such fluids ranges from 3-5 years.

Lobrids

Lobrid antifreeze has recently appeared on the market. Only in 2008, scientists invented a new fluid, whose vocation was to cool engines and other metal parts. Their difference is that they contain, along with organic, a small amount of mineral inhibitors.

Traditional liquids

The last group of antifreezes is called traditional and is outdated at this stage of the development of society. The reason for this is the short shelf life of the liquid, which usually does not exceed two years. The main components that act as corrosion inhibitors are such inorganic elements as:

silicate

phosphate

nitrite

nitrate

Disadvantages of traditional fluids

Another disadvantage of traditional antifreezes is that they do not withstand high temperatures (higher than 105 C). In addition, over time, their use, inorganic components form a kind of cover on the inner surface of the engine and contribute to the deterioration of heat transfer inside. As a result, the overall cooling efficiency of the engine deteriorates.

Antifreeze belongs to the traditional group. Antifreeze is developed back in the days Soviet Union coolant used for the cooling process of engines of all brands of cars.

The main component, which is used as antifreeze in the composition of antifreeze, is ethylene glycol.

Color value in classification

Very often, antifreeze users, out of ignorance, express the opinion that a particular color of antifreeze directly depends on its quality or parts. One of the most popular classifications is as follows:

• red is the highest quality, it lasts about 5 years,
• green - average for quality, lasts from 3 to 5 years,
• blue - the one to which the antifreeze is also referred, very "unpretentious" and low-grade - for 1-2 years.

In addition, there is also a yellow and violet liquid, which is not even taken into account when writing out the classification. They are credited with that high quality, that is the lowest.

Mixing antifreeze of different colors

Motorists are sure that mixing liquids of different colors is strictly prohibited. They lose their properties, do not perform the intended functions and can generally lead to breakdown. Hence the opinion that you can mix liquids of the same color, since they are the same. However, antifreeze of different shades cannot be used simultaneously due to their mutual rejection.

It is believed that mixing the red and green color of the liquid with each other is like breaking the engine with your own hands - it will not do any good, and will harm the car... That is why it is necessary to consider the question - what will happen if you mix antifreeze of different colors?

Break stereotypes

There is nothing like that, according to the color factor, the ability to combine liquids is determined. In fact, the similarity or difference has nothing to do with color or hue. This dependence exists only in relation to the composition and quality characteristics. Antifreezes are identical in components or distinctive, and it is the reaction of the components of different fluids to each other that decides whether they can be mixed or not.

Why, then, the different colors of such coolants and what it means, it means to understand simply. In fact, this is a simple marketing ploy by the manufacturer, which is trying to expand its product range and attract the attention of the consumer. Since the same color of products from different manufacturers stands out less on the shelves than as a full range of colors with a list of all possible functions and appointments, special parts and applications.

The relationship of color and characteristics

In fact, any coolant is colorless, and in order to give it the shade of the desired color, you just need to add a few drops (i.e. from 2-5 grams) of dye to several tons. Such volume cannot affect the quality and properties of the product, but it helps to diversify its products and give it the ability to stand out from the environment of other substitutes.

• Very often, the color becomes a kind of agreement between the manufacturer of the liquid and the buyer.
• For example, especially for the Ford company, the Tekhnoform company creates orange-colored liquids.
• For Volvo, CoolStream Premium produces yellow antifreeze.
• A pink liquid is being created for the well-known car manufacturer GM-Opel.

So, if you mix red and green antifreeze, nothing will change, but only if they have the same composition and properties. Color doesn't solve anything, it's just a typical consumer mistake. Everything is decided by the composition and reaction of one product to another.

Highly frequent question both to my channel (Youtube) and to the blog it is the compatibility of coolants. Namely - what happens if you mix antifreezes? And then there were variations - from one manufacturer, but in different colors. Same colors, but different manufacturers... Various standards such as G11, G12, G13, etc. In general, I am constantly answering these questions, and they are constantly asking me. Therefore, today I want to write this article, in which I will answer everything at once, as usual there will be a video at the end. The information is helpful, so read on ...

I would like to note right away, we will talk about mixing, because despite the different names, these two liquids are also very similar.

What is the same in the compositions?

Well, what at the very beginning I want to repeat once again - guys, all antifreezes, especially in the G11 and G12 standards, are very similar in their base. What I mean is 80% composition of both red and green and blue antifreeze - THE SAME. Usually it is ethylene glycol +. The remaining 20% \u200b\u200b(and possibly less), these are already additives that characterize this or that behavior, I also have an article about this,.

That is, it turns out if you mix, various antifreezes, of different colors and categories, then they will be 80% similar.

What's different?

The difference, as I said from above, is the additives. That is, various additives are added to the same liquid and the desired composition is obtained. It is worth noting that the additives in the compositions are needed precisely in order to remove the negative destructive effect of ethylene glycol and water, because this combination is extremely active and can destroy any metal surface, and even more so a tube or radiator wall. And additives restrain this ardor, removing the negative impact.

To roughly characterize, now only two types of additives are distinguished:

• These are protective ... They protect the tubes and pipes inside, forming a film on their surface that does not allow metal parts to collapse. They are mainly used in G11 and our TOSOLA.
• It is anti-corrosion ... There is no film formation here, but it turns out that all the work takes place when rust begins to appear. These additives block the lesion by simply sealing it. Applied in G12 and G12 +.

To be fair, now there is also a third type - hybrid additives (G13 antifreezes), this is when two protective and anti-corrosion effects are combined at once, that is, they are simply mixed in the right proportion.

About color

The color of antifreeze is more of a distinctive component. As a rule, now, it does not bear any semantic meaning. Although many manufacturers, including Volkswagen, tried to introduce color differences in antifreeze, they even had their own recommended colors.

So G11 was almost always green.

G12 - red (well, or bright orange)

G13 - purple

Although many manufacturers are now not following the path of Volkswagen and painting antifreezes in the colors they want, this is all because there is no strict standardization. So G11 can be both blue and reddish. G12 is green. ...

The colors were introduced so that the driver could easily and easily distinguish between antifreezes, but the confusion between manufacturers now, more and more confuses the common man in the street.

What happens if you mix green, red, yellow (purple) antifreezes from different manufacturers?

YES, actually nothing will happen, you can pour and not even be afraid, if they maintain their standard, then ABSOLUTELY NOTHING SCARY WILL HAPPEN. Such questions arise when, say, your branded antifreeze is over, there is nowhere to buy it (for example, you are on a trip), and red ones from another manufacturer are sold.

So G11 green (from one manufacturer) can be mixed with G11 green from another manufacturer. The main thing is to have similar standards.

As you might have guessed, the G12 can be mixed with another manufacturer's G12.

You can do the same with G13, that is, pouring yellow into yellow or purple into purple.

What happens if you mix different colors

Remember what I said above - there may be one characteristic, but the colors may differ. For example, I've personally seen the G11 in both blue and green. THEY CAN BE MIXED, NOTHING SCARY WILL HAPPEN.

Here I would also like to note that our Russian TOSOL is nothing more than G11 antifreeze and can be mixed with green or blue from another manufacturer.

Everything is the same, you can also do it with G12. If their colors are different, then this does not mean anything! The characteristics are the same, which means mixing is possible.

G13 is now very much fooling the brain of my readers. The thing is that there are only two primary colors - yellow and purple. And many are simply afraid to mix them up. Guys, if there is an inscription of the standard, then there is simply nothing to be afraid of, do not be afraid to mix. Color is just a dye.

Is it possible to mix different characteristics, for exampleG11 andG12

Here you already need to think, although again, nothing terrible, most likely, will not happen. BUT you need to understand that there is a subgroup of G11 and G12, but there is a completely different option, this is G13.

If we take the first subgroup, then mixing will lead to the fact that there will be additives in the final liquid, both protective and anti-corrosion. You won't be able to control the mixing properly, though. The precipitate will most likely not fall, BUT you need to understand that the addition of other additives not designed for your car, in particular radiators, can worsen cooling. WHY? YES, because green antifreezes envelop the tubes with a film inside, which interferes with the cooling of the engine and other units. That is, if you suddenly added antifreeze to red, say green or blue, then be prepared for the fact that temperature regime may fall. All this will also happen and vice versa, if you add blue or green (G11) to red (G12), then the characteristics of the liquid also drop.

Can yellow and green (red) antifreezes be mixed

There is already a slightly different situation, namely the yellow and purple compounds of G13, these are completely different substances. What I mean.

In red and blue (green) versions - the main mass fraction is distilled water + ethylene glycol.

And in the yellow and violet versions - the main mass fraction is propylene glycol + distilled water.

That is, even the base is different here! Ethylene glycol (toxic) was replaced by propylene glycol (safe), these are two monohydric alcohols, they were changed only in order to remove the toxic component.

Also in the composition of G13, there are two types of additives - immediately anti-corrosion + protective.

What happens when you add to yellow antifreeze red or green?

Actually, nothing good:

• WE just do not know how ethylene glycol and propylene glycol will react with each other, even though they are similar, BUT IT'S NOT THE SAME.
• The additives that are in the yellow (purple) version are designed for propylene glycol, it is not known how they will behave with ethylene glycol!
• Also, we do not know, but additives are compatible in general!

Hence the moral - to mixG11 andG12 (G12 +) withG13, I would not! There is a high probability that a precipitate may fall out, because after all, they are not the same thing.

But G13 is purple and yellow, you CAN mix it without being afraid!

Fake antifreeze

Actually, it seems to me that the topic is fully disclosed! BUT what I want to say in the end - have you ever wondered why some compositions, say branded or serious companies, are expensive, but there are compositions that are very cheap?

The same G13 antifreeze, made under the patronage volkswagen (usually purple), it can cost 300 rubles per liter

And the yellow one, say the same G13, produced in some unknown place and not clear by whom, can cost the same money only for a 5 liter canister.

It's all about "fake", because a high-quality liquid will not be cheap, it will also meet all the characteristics and safety requirements, such as.

Good day! A rather relevant and interesting topic has matured, which I propose to discuss in the comments. And we will talk about whether it is possible to mix antifreeze.

Moreover, Internet users are asked a large number of questions on this topic. I will try to answer the main ones. This will allow you to finally understand the issue of the correct selection and combination of coolants for your car.

By choosing for the motor, or buying and all sorts of other fluids, the driver should always think about how their use will be combined with the car. After all, if the composition does not meet the requirements of the automaker, this can potentially lead to serious and undesirable consequences.

The same goes for antifreeze. Many people think that mixing different compounds can harm the car and the whole ... So it is or not, and what you need to know about mixing coolant, we will find out.

Liquid cooling system

Liquid or water-based engine cooling systems are incredibly popular and common among car manufacturers. Initially, ordinary water was used for such purposes. The advantage was that it was easy to obtain, even in extreme situations.

At the same time, water as a coolant (coolant) has its disadvantages:

• corrosion starts quickly;
• when using dirty water, it is imperative to flush the system;
• low temperature threshold of freezing;
• fast boiling;
• active evaporation;
• frequent engine failure;
• the need for constant monitoring of the cooling system;
• a large amount of sediment when using untreated water, etc.

The producers realized that you can't go far on the water. First, glycerin and alcohol were added to the water. The composition has improved and modernized. As a result, we got a special coolant called antifreeze. In the post-Soviet space, the concept of antifreeze is also actively used.

We will understand the classification a little so that you can further understand whether it is possible for motorists to mix compositions in certain situations. Namely:

• different brands;
• different manufacturers;
• different colors, etc.

Some are sure that in no case should you mix antifreeze and antifreeze. Others believe that even if you mix red with green, red with blue, or yellow with any other coolant colors, absolutely nothing terrible will happen. So we'll find out who is right.

A bit of classification

Currently, for automobile engines, or rather for their cooling systems, 6 compositions are used:

• antifreeze;
• G11;
• G12;
• G12 +;
• G12 ++;
• G13.

They can be different firms, one color, different shapes, types, etc. That is, color is not a fundamental criterion here. Therefore, one type of composition can be blue and green, yellow and red, etc.

Let me tell you about each lineup separately.

• Antifreeze. An old type of antifreeze, developed during the Soviet era specifically for soviet cars as a response to imported antifreeze. Consists of the usual aqueous solution using complex alcohols. This includes ethylene glycol and special protective additives;
• G11. Traditional coolant based on ethylene glycol, water and additives. Silicates, phosphates, as well as borates, nitrites, etc. are used as additives. They do not differ in long service life. The main color is blue;
• G12. Carboxylate car antifreezes, where, in addition to components from G11, carboxylates are added. These are compounds of a fairly effective carboxylic acid. The coolant serves for a long time, the composition is mainly painted in red or pink;
• G12 +. Hybrid fluid based on water and ethylene glycol, carboxylate, silicate, nitrite and phosphate additives. The composition of the coolant may vary depending on the manufacturer and its geographic location. Mostly red in color;
• G12 ++. The so-called hybrid fluids. Organic base and silicates are used. Much similar to G12 + antifreeze, but with a longer service life;
• G13. A new type of coolant, where ethylene glycol was abandoned and replaced with propylene glycol. Such a component is harmless, which is why it quickly gained popularity. It happens most often in pink and purple.

But you must understand that any of the antifreeze presented can be painted in completely different colors. It does not depend on the composition in any way. Color is a purely decorative component.

Initially, manufacturers wanted to stand out by changing the color of a standard white liquid. But gradually everyone started using different coloring options. For this, dyes are used.

Mixing issue

If you think that it is perfectly safe to mix red with red, but blue and green car antifreeze should in no case be combined with each other, do not jump to conclusions.

First of all, I advise you to read the material on choosing the best anti-freeze. Here to this article. All vehicles are advised to select only the highest quality formulations. And it is not so important whether we are talking about antifreeze, or is it , flushing agent or some for rust. We put quality first. And it will be better if you constantly start using the same antifreeze.

It is better to mix the compositions in winter and summer in emergency situationswhen there is simply no way to find the original coolant. If you buy a concentrate, then you simply have to mix it with water. But not from the tap, but with a special, purified and distilled one.

As you understand, coolants differ in composition and additives used. And many of them can coexist in one liquid without provoking the appearance of a precipitate and without forming a gel from antifreeze.

If you mix coolants that differ in manufacturer and color, no disaster will definitely happen. But it is not worth experimenting without an urgent need. In the worst case, the resulting mix will not last as long as you originally expected.

Motorists are interested in mixing:

• compositions of the same color;
• mixtures from different companies;
• G11 and G12;
• G12 and G12 +;
• G12 and G13;
• Coolant from different companies (for example, Sintec and Felix)
• antifreeze and antifreeze;
• G11 and G12 ++;
• G12 ++ and G13;
• red and blue;
• blue and green;
• pink and purple.

The list is endless, since there are a lot of potential combinations.

But you should rely on generally accepted rules. They will be the basis for making a decision regarding the mixing of different coolants in emergency situations.

These rules read as follows:

• do not mix coolants that are class 11 and 12;
• it is allowed to combine G11 with G12 + and even with G13;
• if necessary, you can combine 12 and 12+;
• in the case of a combination of 12 with 12 ++ or 13, it is better to refuse such a mixture;
• in parallel, it is not forbidden to combine 12, 12 ++ and 13.

Agree that it is quite difficult to keep such formulas in mind. But sometimes it is better to have the appropriate knowledge in order to avoid mistakes.

Drawing conclusions

Practice clearly proves that drivers can mix coolant from different brands and manufacturers in the tank with the same class and chemical composition. In such situations, it is unlikely that a dangerous for the cooling system is formed car engine sediment.