Best Antifreeze For Car – Reviews And Buying Guide In 2020


The proper functioning of our vehicle depends on the care and maintenance we give it. Hence, the importance of monitoring the temperature of the car, you need the best antifreeze for car so that the engine does not suffer the consequences, such as overheating or freezing of its components in the winter time. Therefore, cars need antifreeze to absorb the excess heat generated by the operation of the vehicle and maintain its fluid characteristics even in extremely low temperatures.

To help you choose antifreeze, we have selected two types with the best recommendations from users on the web. Such is the case of the Flow Química Puro G12 antifreeze, a completely organic ethylene glycol-based fluid with a high degree of purity, which provides protection to the engine avoiding freezing and boiling. We also recommend the IADA 50528 AR CC30% fluid , specially designed for closed circuit radiators and is suitable for all types of vehicles.

The best antifreeze for car on the market

If you are looking for an excellent antifreeze to ensure optimal operation for your vehicle, we have developed a list of some products with a detailed analysis of its characteristics and benefits for motor protection, considering the opinions and recommendations of the users.


Rank #1: Pure Chemical Flow G12

The Flow Química Puro G12 antifreeze is an organic-type coolant that is based on the ethylene glycol compound of a high degree of purity, capable of providing excellent corrosion protection for all metals and motor circuits. Besides, it has a high cooling capacity and a high degree of boiling.

This G12 antifreeze was manufactured with OAT (Organic Acid Technology) technology, so it is entirely organic and does not affect the stability of the joints. Also, it has corrosion inhibitors that are not consumed and are responsible for preventing cavitation and corrosion, which is why it is considered by many of its users as the best antifreeze.

Additionally, this refrigerant antifreeze fluid has a concentration of 100% purity, and its use is recommended directly to the vehicle without diluting the product.

According to some users, this fluid stands out as the best antifreeze for the car of the moment, so we invite you to know its positive and negative characteristics.  



 This antifreeze is recommended for vehicles that circulate in climates with extreme temperatures, providing optimum protection against corrosion of metals present in the engine, boiling and freezing.


 It is a totally natural product, which uses the ethylene glycol compound with a high degree of purity.


 It has corrosion inhibitors that prevent cavitation in aluminum cylinder heads and pumps.



 This product is not compatible with other organic refrigerants, much less with older engines.


Rank #2: IADA 50528 AR CC 30%

Among the best antifreeze for a car of 2020, we present this IADA product, developed for radiators with closed circuits, being its main characteristic to adequately protect the heater, the pump and the cooling loop in cast iron, brass, tin, steel, copper components or those elements of aluminum and other alloys.

With this antifreeze for a car, there is an increase in the boiling point and low freezing point, providing a correct operation for your vehicle in a wide range of temperatures since it has a great capacity to transmit the excess heat generated in the engine to the atmosphere.

The appearance of the IADA antifreeze is visually fluid, bright and transparent, pink, and comes in a comfortable 5-liter presentation. Besides, it contains antifoaming additives, which avoid this inconvenience in the cooling system. But if you don’t know what antifreeze to buy, you should check the pros and cons of this IADA product.



 This antifreeze can be applied to any type of vehicle, especially for light diesel or medium-powered cars; that is, it serves to cool any internal combustion engine.


 This product has a high boiling temperature and a low freezing point of -18ºC, which brings a high capacity of protection to the cooling system of your car.


 Prevents the formation of deposits, since it is free of phosphates. This reduces the obstructions in the cooling system.



 This fluid is not 100% pure since its concentration level reaches 30%, but it provides proper operation and protection to the vehicle.


Rank #3: Febi Bilstein G13 38201

This antifreeze for the radiator of the Febi Bilstein brand stands out for contributing significantly to the actual cooling performance of the car engine in any operating condition and adapts to all climates, offering adequate protection against the effects of freezing in a proportion of to -52 ° C if diluted adequately with distilled water.

With this antifreeze G13, you will not have problems with the oxidation of the metal parts inside the car. Additionally, it also helps in increasing the boiling point, protecting the engine from the effects of overheating, so it is ideal for use in the summer season, being recommended by some users as the best antifreeze.

Buying this G13 coolant is a guarantee of the most advanced protection technology for your engine, but if it additionally comes from a trusted brand such as Febi Bilstein it is an almost sure bet because many consider it to be the best brand of antifreeze.



 It is a product manufactured based on ethanediol and glycerin that is less harmful to the environment than glycol, so it is more organic.


 This product has a purple visual appearance and comes in a reliable 5-liter performance that facilitates dosing.


 It is effective against freezing and also offers optimal protection against overheating because it provides excellent cooling. Besides, it protects against lime deposits and corrosion.



 It is designed to be diluted with distilled water because it is very concentrated, but the proportion will vary according to the maximum freezing temperature you want for your car.


Rank #4: Motul Inugel Long Life

If you want to know what is the best antifreeze for the car you can find in the market, we recommend Motul Inugel Long Life fluid, which is a long-lasting organic antifreeze, specially formulated for closed cooling circuits, thanks to the action of its antioxidant agents. The natural type that provides more excellent stability to the formula, protecting the engine elements for longer.

Also, this blue antifreeze is recommended for those services that require severe care, as well as for open cooling circuits, since it has a high degree of concentration of components such as mono ethylene glycol that ensures an optimal level of protection, both against boiling reaching a temperature of 125ºC, as against freezing, maintaining the fluidity even at temperatures of -18ºC.

If you want to know what antifreeze to buy, you have to review the advantages and disadvantages of this Motul antifreeze because it offers long-lasting protection and high concentration.



 This antifreeze can be applied in all types of gasoline or diesel engines, is perfect for cars, trucks, motorcycles, tractors, boats, and public works machinery.


 Inugel Long Life uses a cellular technology that is responsible for reducing the engine temperature so that it remains stable and maximizes its power.

Long term:

 This product ensures optimum long-term protection against corrosion, prevents lime deposits, and protects the joints and motor circuits.



 To guarantee the optimal protection and effect of this refrigerant, you cannot mix it with other liquids, and if you add water to dilute it, it is recommended that it be demineralized.


Rank #5: Repsol MQ 50%

The Repsol MQ, 50% antifreeze, is formulated based on ethylene glycol in its composition, with anti-corrosive and anti-foaming additives, as well as organic inhibitors, which are responsible for effectively protecting motor metals against corrosion, main components made of aluminum and others. Alloys, which may be present in the cooling system.

Keep in mind that while this pink antifreeze can be used in any type of cooling circuit, be it copper, aluminum or cast iron, its use is mainly recommended in high-pressure aluminum engines, where an increase in the protection of components subjected to high temperatures, which is why it is among the best antifreeze for the car of 2019.

Repsol is a brand that cares considerably to manufacture essential products for the protection of the engine of our car, so it has earned a place as the best brand of antifreeze in our selection.



 This product has high security of the organic inhibitors used in its formulation, which significantly reduces its degradation.


 This refrigerant does not contain amines, phosphates, nitrates, borates, and silicates, so it is friendly to the environment.


 It is a product additive with totally organic inhibitors, providing excellent corrosion protection capacity for all types of metal.



 Although this fluid has high stability and is durable, it is recommended to change all the refrigerant at five years, even if the indicated mileage has not been reached.


Rank #6: Kraffit Energy Plus 50

This G12 plus antifreeze is organic and offers high protection performance, as it is for direct use, and its freezing point can reach up to -37ºC, so its high antifreeze level stands out.

Also, it is a product formulated with ethylene glycol and anti-cavitation additives, anti-chalking agents, antifoaming agents, organic corrosion inhibitors, as well as a neutralizing reserve, being chemically stable which allows it to have a long period of use without deterioration.

All these components are responsible for protecting the different metal elements that are in the internal combustion engine cooling system, such as aluminum and light alloys, as well as the radiator and the water pump.

Being a biodegradable product that meets the standards of vehicle manufacturers, this antifreeze is especially recommended for Audi, Volkswagen, Seat, Skoda vehicles, among others, is considered by many users as the best antifreeze for a car of the moment.



 We are talking about an antifreeze that fully complies with the safety specifications of the leading car manufacturers on the market, so it does not contain amines, nitrites, phosphates, or silicates.



 It has several types of additives, among which we highlight those of anti-cavitation, defoamers, anti-scale, and neutralizing reserves, which together protect the engine, the water pump, the radiator, and the entire cooling circuit.


 This is a high-quality antifreeze. Because it has a concentration of 50% and that can be used by most cars of the Volkswagen brand (Audi, Seat, Skoda, VW), compatible with any province of Spain and at any season of the year.


Car tank:

 You must be sure that your car needs this product, so if you decide to buy it, you should clean the car’s cooling tank very thoroughly.


Rank #7: Castrol Motorcycle Coolant

Motorcycles also need coolant for their radiators, and probably the best product for them is the Castrol Motorcycle Coolant because it is a pre-diluted fluid, formulated with ethylene glycol, which is responsible for transmitting heat efficiently and that is developed to meet the specifications required by motorcycles and scooters that operate using a water cooler.

As for its antifreeze performance, we can mention that this motorcycle antifreeze can reach up to a temperature of -25ºC, so it is highly efficient up to that level of freezing being considered by some as the best antifreeze for a car of the moment.

It is also efficient in the face of corrosion problems providing long life to the engine and offers outstanding cooling and heat transfer properties. Besides, in the case of spills, this product is compatible with the paints used in motorcycles.



 This Castrol coolant is recommended for all scooter and motorcycle categories, not being compatible with Magnesium alloy based engines.


 Among the visual characteristics of this antifreeze, we mention that it is a clear liquid, blue or green, that provides a high level of protection against oxidation.


 It is a product with an efficient antifreeze performance, which can be subjected to a maximum freezing point of -25ºC maintaining its fluidity and protection.



 The container containing this refrigerant should be stored in a closed place, and if you must leave it outside, it is recommended that the drum is in an upright position to prevent water ingress or deterioration of the container.


Rank #8: Tamar 601130005 50%

Among the cheap refrigerants on the market, we can mention that this Tamar product that is 50% antifreeze liquid for direct use, that comes in a 5-liter presentation and that can reach a maximum boiling point of up to + 132ºC avoiding overheating of the engine, as well as fluid freezing problems withstanding up to -35ºC.

Its formula is based on mono ethylene glycol. It does not contain in its composition amines, nitrates or phosphates, so it fully meets the requirements of different automotive systems, being wholly organic and with low toxicity.

If you wonder what antifreeze to buy for your vehicle, which is of good quality, and at a reasonable price, you should check the positive and negative characteristics that this product has.



 This coolant offers high performance in terms of engine protection because it is efficient against overheating and against the effects of freezing, as well as a tremendous anti-corrosive property.


 It is a yellow antifreeze, which is used directly in the car’s cooling water tank without diluting the product.


 This coolant can withstand extreme temperatures of + 132ºC / -35ºC, so it provides a high level of protection for all the components of your vehicle’s cooling system.


Cleaning: For optimum results, it is recommended to clean the tank before adding the product.


Rank #9: Krafft Professional 30

If you are looking for the best price-quality antifreeze for your car, you have to check the features that this Krafft product brings, because it is a 5-liter container at a price that easily fits any budget, and it is also a fluid of Highly efficient cooling, which is why many users recommend it.

This Krafft antifreeze is a yellow fluorescent liquid for direct use and formulated based on ethylene glycol, which in turn has, in its composition, a package of very efficient corrosion inhibitors in the protection of the different metals of the vehicle.

Also, this product contains a series of additives to improve the level of protection of the cooling system, the radiator, and the water pump, as they are anti-chalky, anti-cavitation, neutralizing, and antifoaming.

Among the cheapest refrigerants on the market, we select this product to analyze its pros and cons.



 This fluorescent yellow product contains a leak detector so you can tell if your vehicle’s engine cooling system has any cracks or spills.


 Krafft refrigerant comes in a 5-liter presentation, at a very reasonable price that fits many budgets.


 Because there are no amines, nitrites, or phosphates in its composition, this antifreeze is consistent with the technical specifications of the leading car brands in the market.



 Although it is the right quality product, you should know that this refrigerant only supports as a lower temperature point about -16.50 ºC and reaches the boiling point at 104ºC.


Guide to buy the best antifreeze for car


If you were interested in any of the products described above and wish to take one of them, before making any decision, you must know that there are general characteristics that you should check at all times when you plan to buy an antifreeze for the protection of your car, so We have made a guide to buy the best antifreeze, taking into consideration the essential aspects that this fluid must contain to obtain better protection results.

Frequently asked questions

Q1: Where is the antifreeze released?

Antifreeze or coolant is put into the water tank of the car’s cooling system. But it is important to check the user manual of your vehicle, so you know the mileage indicated to change the coolant.


Q2: Is it normal for a car to consume antifreeze?

If you notice that the antifreeze level drops after 4 to 5 months of use, you may consider it normal, but if it happens before, you should consider other possible causes. One of them could be the proportion of water and coolant, because if you put more water than coolant, the product tends to evaporate more quickly. Also, it may happen that there is a failure in the mechanism that limits the pressure in the cap of the expansion bottle, which allows the fluid to evaporate in that way. Another cause may be a possible leak in a hose or a connector, which in some cases is more difficult to detect.


Q3: Is the same refrigerant as antifreeze?

In principle, we must clarify that the coolant is a fluid that is used in the vehicle’s cooling system with the purpose of absorbing excess heat and also fulfills an anticorrosive function of all the metallic elements of the system, and the antifreeze comes to be a property that this fluid has, in order to avoid freezing the engine mechanisms, at extremely low temperatures.


Q4: What is the antifreeze made of?

The main component is a type of alcohol, called ethylene glycol, which is a fluid with essential properties for the cooling system. Its main feature is to have a high boiling point, which prevents evaporation of the fluid, as well as a very low freezing point, so that the possibility of freezing the product is minimized. Other components are additives that inhibit corrosion, foam and cavitation.


Q5: What happens if I pour water instead of antifreeze to the car?

In principle, we could say that is not bad, because e l water can also function to dissipate heat , but has three adverse factors including its boiling point and freezing, making the unstable to function properly water, and is also highly corrosive to all metal components of the cooling system, so its use is not recommended.


Q6: When should the car be antifreeze?

It is generally recommended to change the vehicle coolant every 40,000 kilometers or over a period of 2 years, but this varies from one manufacturer to another, so it is convenient that you review the user manual of your vehicle. Also, the refrigerant you choose and according to its concentration, in its indications for use indicates the required replacement time. Anyway, check the coolant level weekly, since there are other causes beyond the normal consumption of this, such as cooling system failures.


Q7: Why is the oil mixed with the antifreeze?

When this situation occurs, there are two possible causes: the first could be a product of the oil cooling system, which in a part of its system shares space with the cooling system; the other cause, which is even more serious, could be a consequence of a failure in the cylinder head or its gaskets, which is the part that seals the engine cylinders above.


Q8: What happens if the car runs out of antifreeze?

It would be very serious, since the engine could be damaged by overheating , burning its internal parts which translates into a very high expense for car repair. Also, there could be the possibility of low temperatures that affect parts of the mechanism, which freeze blocking the functionality of the engine and you could not start the vehicle. Therefore, it is important that you periodically evaluate that the coolant reservoir contains the fluid between the minimum and maximum marks.


How to use antifreeze

Antifreeze is a liquid that performs several functions in the cooling system of your vehicle. First, it is responsible for absorbing the excess heat that could generate engine operation, to maintain an ideal temperature of 90 ° C, inhibits corrosion in its metal parts, prevents the formation of steam and foam bubbles. And in low temperature climates it has antifreeze properties. Next, we will explain in a few steps the procedure to properly use this product.


Time to change antifreeze

It is important that you review in the user manual the time that must elapse so that you can make the replacement of the coolant in your vehicle, since the times could vary from one manufacturer to another. But, generally the estimated time is 2 years at 40,000 kilometers, the first of the events to be fulfilled. Also, you can take as a reference the time recommended by the manufacturer of the chosen product, where the time that guarantees the properties mentioned in its characteristics is estimated.


Preparations for replacement

Place the vehicle on a level surface, which does not have any inclination. Wait as long as it takes for the vehicle to be completely cold, so that you avoid any type of burn accidentally. Place a bucket under the purge wrench, which is located at the bottom of the radiator. Make a first measurement of the refrigerant fluid in the expansion bottle.


Bleed the cooling system

Uncover the expansion bottle and then proceed to release the purge key located on the bottom of the radiator. When you do this procedure, wear protective gloves, to avoid any contact with the fluid, since it is highly toxic. After the old fluid is completely drained from the cooling system, you can now close the drain valve.


Antifreeze mixture

Depending on the refrigerant product you choose and its degree of concentration, the manufacturer will place in its indications of use, how you should administer the fluid. In some cases, it will say that the undiluted refrigerant is applied directly, or on the contrary, you should mix the product with preferably distilled water, in some kind of proportion, which could be 1: 1 or 1: 2, among others.


Pour the fluid into the tank

After you have prepared the mixture, pour the coolant into the tank carefully, until the liquid reaches the maximum mark indicated on the container. Then, proceed to start the vehicle to help the coolant circulate and check the minimum and maximum marks of the expansion bottle; if it decreased, you must continue pouring until you reach the maximum mark again.


Shopping guide


Formulation and composition

When we make a comparison of antifreeze we realize that there is a wide range of products on the market, which are differentiated between organic and inorganic fluids, according to the components found in their formulation, but both fluids use ethylene glycol as a base, a type of alcohol that has been used since the end of the decade of the 30s of the last century, because it is an element that provides a low freezing point and a very high level of boiling, being very important in the effective operation of the vehicle.

In this sense, you should know that organic refrigerants have high durability, doubling the mileage to inorganic fluids and have distilled water in their composition.

They contain in the mix a series of additives such as preservatives, antioxidants, defoamers, corrosion inhibitors, which help to more efficiently protect the engine and cooling system parts of the car, since they are free of chemicals such as nitrates, phosphates or silicates, and elements such as calcium or magnesium do not accumulate, generating less solid deposits harmful to the vehicle; while inorganics tend to evaporate and are more polluting.

Temperature levels

The main function of the coolant is to maintain an adequate temperature in the engine, which helps its optimal operation, as it prevents it from overheating. Accordingly, the coolant must have an effective heat capacity and a very low freezing level, with a freezing point below -20ºC being recommended for Spain. With this temperature, the increase in the volume of the fluid and damaging the circuits during its circulation is avoided.

Likewise, the coolant must offer a high level at the boiling point that prevents evaporation of the fluid as a result of engine heating when it is running, the maximum being about 140 ° C. Remember that the perfect temperature for the engine is 90ºC.

Coolant color

Among the different types of refrigerants in the market, you will notice that they all come in different colors, namely pink, purple, blue, green or yellow, these colors are not indicative of properties or characteristics, but are effective in detecting possible leaks that could appear in the cooling system.

Another aspect that you should check in the antifreeze is its pH level because this is indicative of the anticorrosive capacity of the fluid on metals, as well as the proportion of alkaline inhibitors and the amount of waste.

On the other hand, it should be noted that the antifreeze can have different prices and come in different presentations, from 1 liter, 2 liters, 5 liters or up to 60 liters containers, and depending on the quantity found in said container, this will affect How much does a coolant cost?

In this sense, it is likely that you are looking for a coolant that is good and economical, but if it is to protect the engine of our car and give it more life, it is necessary to invest a little more money and buy a quality antifreeze, with a good concentration of ethylene glycol, so that it can provide our vehicle with a lasting protective effect, which reaches about 2 years or a mileage of 40,000 km for replacement.

Leave a Comment