
Automotive coolant, also known as antifreeze, is one of the most essential fluids in your vehicle. It plays a critical role in regulating engine temperature, preventing overheating, and protecting the engine from corrosion. However, many drivers are confused about the different types, colors, and functions of coolants.
In this detailed guide by Amazon Lubricants Australia, we will cover:
- What is coolant?
- Types of automotive coolants
- Coolant colors and their meaning
- How to check and replace coolant
- Frequently asked questions about coolants
Let’s dive into the world of automotive coolants and ensure your car’s engine stays in top condition!
What is Coolant?
Table of Contents
Coolant is a liquid that circulates through the engine, absorbing excess heat and preventing it from overheating. It also protects the engine from corrosion, freezing, and boiling.
A coolant typically contains a mix of:
- Water: Helps with heat absorption
- Antifreeze (ethylene glycol or propylene glycol): Prevents freezing in cold weather and overheating in hot weather
- Additives: Protects against rust, corrosion, and scaling
Without coolant, your engine can suffer significant damage, especially in extreme temperatures.
Why is Coolant Important?
Coolant does more than just keep your engine cool. Here’s why it’s essential:
- Regulates engine temperature: Prevents overheating in summer and freezing in winter.
- Prevents corrosion: Protects engine components from rust and scaling.
- Increases engine lifespan: Helps maintain your engine’s health over time.
Types of Automotive Coolants
Choosing the right coolant for your car is crucial. Here are the main types of coolants available:
1. G12 Coolant
- Color: Red or pink
- Type: Organic Acid Technology (OAT)
- Lifespan: 4-5 years or 250,000 km
- Best for: Modern cars with aluminum engines
2. G13 Coolant
- Color: Purple or pink
- Type: Environmentally friendly OAT
- Lifespan: 4-5 years or 250,000 km
- Best for: Cars with aluminum or mixed-metal engines
3. G12 Antifreeze Coolant
- Color: Red or pink
- Type: Long-life antifreeze
- Best for: Vehicles that require long-lasting corrosion protection
4. Traditional (Green) Coolant
- Color: Green
- Type: Inorganic Additive Technology (IAT)
- Lifespan: 2-3 years or 50,000 km
- Best for: Older cars
Coolant Colors and Their Meaning
Coolants come in various colors, each indicating their type and chemical composition.
Coolant Color | Type | Recommended Use |
---|---|---|
Red | G12, G13 | Long-life coolant for modern engines |
Green | Traditional (IAT) | Older cars |
Pink | G12, G13 | High-performance long-life coolant |
Blue | G11 or traditional | Japanese cars |
Yellow | Universal | Suitable for different engine types |
Purple | G13 | Environmentally friendly coolant |
Red Coolant vs. Green Coolant
One of the most common questions is about the difference between red coolant and green coolant.
Feature | Red Coolant | Green Coolant |
---|---|---|
Lifespan | 4-5 years | 2-3 years |
Type | Organic Acid Technology (OAT) | Inorganic Additive Technology (IAT) |
Corrosion Protection | Long-lasting | Requires more frequent replacement |
Best For | Modern cars | Older cars |
Which One Should You Use?
- If your car is a modern vehicle, go for red coolant.
- If you own an older car, green coolant is more suitable.

How to Check Your Coolant Level
Regularly checking your car’s coolant level is essential to keep your engine running smoothly.
Steps to Check Coolant Level:
- Turn off the engine: Wait for the engine to cool down before checking.
- Locate the coolant reservoir: Usually a plastic tank near the radiator.
- Check the level: The reservoir will have “MIN” and “MAX” markings. The coolant should be between these marks.
- Top up if needed: Use the recommended Amazon Lubricants Australia coolant to refill.

How to Change Coolant in a Car
Changing your car’s coolant is a simple maintenance task you can do at home.
Steps to Change Coolant:
- Drain the old coolant: Place a container under the radiator and open the drain valve.
- Flush the system: Use clean water to flush out any remaining coolant.
- Refill with new coolant: Pour in the new Amazon Lubricants Australia coolant.
- Bleed the system: Run the engine to remove air pockets from the system.
Best Coolant Products in Australia
Product | Color | Type | Features |
---|---|---|---|
Amazon G12 Coolant | Red | Long-life OAT | Corrosion resistance, long-lasting |
Amazon G13 Coolant | Pink | Eco-friendly OAT | Superior performance, biodegradable |
Amazon Blue Coolant | Blue | Traditional | Ideal for Japanese cars |
Amazon Green Antifreeze | Green | Inorganic | Suitable for older engines |
Amazon Universal Coolant | Yellow | Universal | Compatible with various car models |
Frequently Asked Questions (FAQs)
1. Which Coolant is Best for My Car?
Check your vehicle’s manual to see the recommended coolant type. Amazon Lubricants Australia offers a range of coolants for different car models.
2. Where Can I Buy Coolant?
You can purchase Amazon Lubricants Australia coolants from authorized dealers or order online.
3. How Often Should I Change Coolant?
Coolant should be replaced every 2-5 years, depending on the type and usage.
Conclusion
Coolant is essential for your car’s engine health. Using the right coolant ensures your vehicle stays cool, prevents corrosion, and runs efficiently. Amazon Lubricants Australia offers premium coolant solutions to meet the needs of all types of vehicles.
Keep your car running smoothly by choosing the right coolant from Amazon Lubricants Australia!
Boost your car’s performance with Amazon Lubricants Australia’s high-quality coolant products!