Guide: What Type of Automotive Coolant is Best Today?

To ensure that your car operates at its best efficiency and durability over time, it is essential to equip your vehicle with the right type of coolant. Engine coolant effectively dissipates heat from the engine, especially during scorching summer weather. So, which type of coolant is best and should be used? Let’s explore this topic with Huynh Chau in this article!

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• Why is the car radiator fan not running?
• Everything you need to know about engine coolant for cars.
• AMSOIL Antifreeze Coolant for cars.

What is the best car coolant currently available?

1. What is the function of car coolant?

Before finding out which type of car coolant is best, it is important to understand the actual function of this product. Coolant is a type of engine fluid composed of distilled water, Ethylene Glycol, antifreeze agents, and several other additives. The main purpose of coolant is to control and dissipate heat from the engine and prevent any potential damage that could occur due to boiling or freezing.

Additionally, coolant helps prevent corrosion, inhibits the formation of foam and water vapor inside the hoses, thereby ensuring that the cooling system operates smoothly and steadily.

2. Signs that it's time to change the car coolant

Many car owners only focus on how long it takes to change the oil and neglect to check or replace the coolant in their vehicles. This is a bad habit that can directly affect the performance and longevity of the engine.

Typically, to ensure optimal car performance, coolant should be changed every 40,000 – 60,000 km (or every 2 – 3 years). If the vehicle operates under high frequency or heavy loads, the replacement interval may be shorter.

Therefore, when servicing and changing oil for your car, you should also check the vehicle's cooling system to promptly detect any issues. If you notice the following signs, you should choose one of the types of car coolant and replace it immediately:

• The radiator is clogged with excessive dirt, hindering the flow of coolant. If not cleaned and replaced soon, the hoses may suffer excessive pressure, leading to potential leaks.
• The coolant appears cloudy, changes color, or contains rust particles. This indicates that the coolant has become degraded; continuing to use it may cause the radiator to corrode and rust the engine.

Some signs indicate that your car needs a coolant replacement.

3. Overview of car coolant technologies

There are many types of car coolants available in various colors such as pink, green, red, orange, and blue... The difference in the chemical composition of each