green coolant vs orange coolant

Difference Between Green Coolant & Orange Coolant: 2023 Guide

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To maintain the proper operating temperature range, your engine circulates a special fluid called a coolant, often known as antifreeze. You may have come across green coolants as they seemed to be the most popular.

However, you can also find orange, blue, or even pink coolants. It is manufactured from either ethylene glycol or propylene, water, and a few chemicals for protection. Without a coolant, the heat generated by continuous internal combustion would rapidly kill the engine.

Water cannot keep the system cool on its own since the extreme temperatures within the engine would cause it to boil and completely evaporate. Similar to how water might freeze when the automobile is idle in frigid weather, rendering the cooling system ineffective.

Here is the significant difference that separates a green coolant from an orange coolant. Find out which is the best for your car.

Green Coolant vs. Orange Coolant

Green coolant is a propylene glycol-based coolant that has been dyed green. It is used in applications where corrosion protection is required for all metals, including aluminum. It offers good heat transfer properties and does not leave scale or mineral deposits. It also contains additives to inhibit foam formation and prevent the growth of bacteria.

Orange coolant is an ethylene glycol-based coolant that has been dyed orange. It is used in applications where corrosion protection of ferrous metals is required, but not aluminum. Orange coolant contains no additives to prevent foam formation or the growth of bacteria.

Green Coolant

green coolant

The most common type of coolant is green coolant. It is made of ethylene glycol and is used in most cars. It is also the oldest type of coolant.

What is it?

Green coolant is an engine coolant that keeps a car’s engine from overheating. It is made from a combination of water and glycol, and it is dyed green so that it is easily visible in the event of a leak. Green coolant has a lower boiling point than water, and it also has a higher freezing point. This makes it ideal for use in areas where the temperature gets very hot or cold.

Green coolant is compatible with all types of cars, but it is not compatible with orange coolant. Orange coolant is made from a different mixture of chemicals, and it can actually damage the sealant in the radiator of a car that uses green coolant. For this reason, it is vital to ensure that you use the correct type of coolant for your vehicle.


  • It maintains the pH level of your coolant at a neutral level, which prevents corrosion and buildup in your cooling system.
  • It has a higher boiling point than the standard coolant, so it can better protect your engine from overheating.
  • It is compatible with all types of engines, including those with aluminum components.
  • It is safe for use in all vehicles, including those with plastic radiator components.


While green coolant does have its benefits, some disadvantages should be considered.

One of the most significant disadvantages is that it can be challenging to find. Not all auto parts stores will carry it, which can be more expensive than the traditional orange coolant. Additionally, some research has shown that it may not be as effective at preventing corrosion in specific engines, particularly those made with aluminum.

Orange Coolant

orange coolant

When it comes to coolant, there are many different options on the market. But what is the difference between green coolant and orange coolant?

Green coolant is typically used in older vehicles, while orange coolant is used in newer cars. Here, we will take a closer look at the difference between green and orange coolant so that you can make the best decision for your vehicle.

What is it?

Orange coolant is a type of coolant that is typically used in vehicles. It is made from a mix of ethylene glycol and water and often has orange dye added to it to give it its color.

Orange coolant typically has a higher boiling point and freezing point than green coolant, making it ideal for use in hot-running engines or cold weather.


  • It does not contain silicate, borate, or phosphates which can clog cooling systems.
  • Orange coolant is biodegradable and will not harm plant life if it leaks into the ground.
  • It also contains corrosion inhibitors to help protect against rust and freezing.


Although the newer yellow coolant has a higher boiling point and does not require as much water for proper mixing, it does have some disadvantages. The yellow coolant is not as effective in preventing Cavitation erosion and needs to be replaced more frequently than its green counterpart.


It is safe to say that the main difference between the green coolant and the orange coolant is their chemical composition. The green coolant has a higher concentration of propylene glycol, while the orange coolant has a higher concentration of ethylene glycol.

The coolant in your car’s cooling system must be checked frequently to ensure you have enough, just like you would with lubricants. Our engine coolant and antifreeze aid in preventing major and severe damage to your engine.

Please consult your owner’s handbook to learn which coolant is appropriate for your vehicle and how to apply it because not all coolants may be blended.

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