Antifreeze

AVTOIL Antifreeze: Choosing the Right Cooling Solution to Protect Your Engine

Antifreeze is a special chemical solution that prevents the water in the engine’s cooling system from freezing and increases its boiling point at high temperatures. This colorless, alcohol-based liquid is essential for every vehicle to ensure stable engine performance throughout all four seasons.

AVTOIL antifreeze varieties are formulated to effectively prevent both freezing in low temperatures and overheating in hot conditions. Choosing the right antifreeze extends the engine’s lifespan, reduces corrosion on metal surfaces, and prevents sediment buildup in the cooling system.

Types of Antifreeze – Which One Should You Choose?

Automotive manufacturers classify antifreeze into four main categories based on their composition:

1. Inorganic (IAT) Antifreeze – Green Antifreeze

• Contains silicates and phosphates

• Has a lifespan of 2 years

• Ideal for older vehicle models

• Protects metal surfaces from corrosion

• Typically green in color

2. Organic (OAT) Antifreeze – Red / Orange / Pink

• Provides long-lasting protection (4 years)

• Penetrates the engine more slowly but forms a stronger protective layer

• Suitable for newer generation vehicles

3. Hybrid Antifreeze (HOAT)

• A blend of organic and inorganic technologies

• Medium lifespan

• Suitable for use in various climate conditions

4. Nitrited Organic Antifreeze (NOAT)

• Designed especially for trucks and heavy machinery

• Red or dark pink in color

• High corrosion resistance

How to Get Maximum Performance from AVTOIL Antifreeze

Applying the correct methods during antifreeze replacement is essential for engine safety.

How Is Antifreeze Changed?

1. Park the vehicle on a flat surface.

2. Open the radiator valve after the engine has cooled.

3. Completely drain the old antifreeze.

4. Close the valve and add new antifreeze to the reservoir.

5. If using concentrated antifreeze, mix 50% antifreeze + 50% distilled water.

6. Start the engine and check for air pockets in the system.

7. Top up to the required level and finish the process.

Attention: Do not mix incompatible antifreeze types.

Antifreeze Differences by Color

AVTOIL’s wide product range offers antifreeze suitable for various automotive manufacturers.
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Benefits of Using Antifreeze

• Optimizes freezing and boiling points

• Reduces corrosion and rust

• Prevents sediment buildup in the cooling system

• Extends engine lifespan

• Maintains stable performance during driving

• Can also prevent windshield washer fluid from freezing

What to Consider When Buying Antifreeze

• Choose based on composition, not color

• Prefer only reliable, high-quality brands

• Avoid products nearing the end of their shelf life

• Consider the coldest temperature in your region

• Use the same type of antifreeze (do not mix)

• Always follow the vehicle manufacturer’s recommendation

FAQ

At what temperature does antifreeze freeze?
This depends on the antifreeze type and its mixing ratio with water. Quality antifreeze can protect against freezing even at -40°C or lower.

Which vehicles use green antifreeze?
It is usually suitable for American-made vehicles and older-generation engines.

How is antifreeze added to a vehicle?
It is filled into the radiator reservoir up to the MAX line. The engine must be cool.

What happens if antifreeze is not used?

• Water may freeze in winter and crack the radiator

• The engine may overheat in summer

• Corrosion and rust will develop

• Damage may occur in the cooling system

AVTOIL – Reliable Antifreeze That Protects Your Engine

AVTOIL’s wide range of products provides all the protection your vehicle needs to choose the right antifreeze.
You can find the most suitable antifreeze at AVTOIL to protect your engine from freezing, overheating, and corrosion.