Radiator antifreeze/coolant provides a protective layer between the metallic surfaces in the engine, thereby preventing the electrical exchange of different metals and providing corrosion protection as well. In addition, the coolant prevents the formation of "sludge". This red sludge would otherwise contribute to the clogging of the channels through particle deposits and wear down the surfaces and speed up corrosion.
What colour coolant for my car?
You have probably already noticed that there are many different colours (orange, red, blue, green, yellow and violet) of coolant to buy. The colour of the coolant does not give any information about its chemical composition. However, it is true that different colours indicate different standards. It is therefore quite easy to find out which antifreeze engine coolant is best suited for your car based on the colour differences. It is not only the colours that differ in the radiator antifreeze. Each product also has special additive packages, each of which is adapted to the different cooling systems and to the materials used by the car manufacturer. In any case, it makes sense to follow the manufacturer's recommendations in your car's owner's manual.
Popular brands of antifreeze
Here we’ll take a look at some brands that you might want to consider when purchasing a coolant for your car as well as their advantages and disadvantages.
Advantage: This is the only product you need to provide maximum protection for your car's engine. coolant is available in ready-to-use and concentrated form and has been tested at temperatures from -37°C to 129°C, making it suitable for all cars and driving conditions. Coolant/antifreeze should protect against extreme temperatures while maintaining engine performance – Prestone coolant/antifreeze does both. And with its special patented formula, the product can be used safely in all makes and models, as well as with other brands of coolant. Disadvantage: depending on which Prestone coolant you need, the price can be somewhat higher.
Advantage: If you are looking for a modern, technologically advanced radiator antifreeze for all radiators this is the product for you. It is available in both liquid and concentrate form, has exceptional application properties, and protects the engine from frost in winter and from overheating in summer. The coolant can be used in all types of radiators, especially those made of aluminium, and can be mixed with other fluids regardless of colour.
Disadvantage: The price also has a wide range which depends on the features and specifications.
Advantage: An enhanced, ready-to-use formula with outstanding performance characteristics for all-season application in all contemporary cooling systems for which the use of monoethylene glycol-based coolant has been recommended. The coolant has excellent corrosion protection properties and is safe for seals, rubber, and plastics. Some consider it to be the best diesel engine coolant as it guarantees optimum operating temperature in both summer and winter.
Disadvantage: This product is often copied and sold as the original, so you should be on guard when purchasing.
Advantage: This popular brand is known for its large assortment of coolants. It helps maintain the proper operation of your engine all year round, regardless of the temperature, and also features corrosion protection and prevents the formation of sludge. Liqui Moly is free of nitrites or silicates.
Disadvantage: Disadvantage: the products have to be mixed in a 50:50 ratio, and many car owners prefer pre-mixed coolants.
Advantage: If cooling system maintenance is neglected or the wrong coolant is used, cooling system failure is the leading cause of vehicle breakdowns. Therefore, choosing the right coolant is an essential aspect of engine protection. can maintain system parts in the best condition possible. The majority of automotive manufacturers issue concrete specs and advise the use of different coolant technologies. Valvoline coolants offer these proven technologies, plus other advantages, so you can be sure that you are getting the best possible protection.
Disadvantage: the products have to be diluted, and many car owners prefer pre-mixed coolants.
Mixing different coolants
If you need to add some antifreeze e.g. BMW antifreeze coolant to the cooling system, it is always best to stick to the coolant, i.e. colour, that you are already using. Mixing a blue or green fluid with a red one, for example, will result in an unpredictable chemical reaction causing the corrosion protection to be affected and the lubrication of the cooling water pump to no longer function. This can cause damage even after only a short time, and the repercussions will be costly repairs.
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