What types of antifreeze are there
Isabella Wilson
Published Apr 29, 2026
There are three main types of coolant that car companies use: Inorganic Additive Technology (IAT), Organic Acid Technology (OAT), and Hybrid Organic Acid Technology (HOAT). Typically, older cars use IAT. It needs to be changed every two years or 24,000 miles, making it far inferior to newer formulas.
Does it matter what kind of antifreeze?
Well, you use the coolant that is specified in your owner’s manual. If you just need to top it up, the recommendation is still the same, however it is unlikely to cause any serious problems if you add a litre of a different type of coolant, as long as you follow the manufacturer’s maintenance schedule.
What is the difference between red and blue antifreeze?
Antifreeze mixes with water to form a covalent bond to prevent the water from freezing. … Antifreeze Blue is a full concentrate which meets BS6580 and contains the same pure ethylene glycol and anti-corrosive additives as the Red. Its application is for protection for up to a maximum of 2 years.
What happens if you use the wrong color antifreeze?
If you do mix different-coloured coolants they generally do not mix well and some can form a gel-like substance. This will halt coolant flow, causing blockages that can lead the engine to overheat, as well as damage to the radiator, water jackets and heater core. Also, the water pump can overheat and fail.Is there a difference in antifreeze?
Both orange and green antifreeze serve as engine coolants, designed to keep it from freezing or overheating. They also defend the cooling system against corrosion. However, older cars contain more metallic components, while newer models have more aluminum and nylon.
What is green antifreeze used for?
Green antifreeze is made with special tweaks to the formula specifically to help prevent the corrosion of metals in a vehicle’s cooling system. That older formula is typically meant for vehicles made before the year 2000, which were built with more steel and copper components than modern vehicles.
How do I choose the right antifreeze?
The easiest way to make sure you’re getting the right coolant for the job is to go to your car’s dealership. They’ll sell the coolant for your specific make and model, and it’s guaranteed to be the correct one. Many times, the coolant is actually branded for the car you’re going to put it in.
What is orange antifreeze?
Organic Acid Technologies This type of coolant uses organic acids to prevent corrosion and is usually orange in color. A third type of coolant utilizes Hybrid Organic Acid Technology that combines the benefits of IAT and OAT into one product.What is the red antifreeze?
Red antifreeze is commercially known as Dexcool® that lasts longer than other types of antifreeze. … This hybrid technology leads to the production of red antifreeze. When compared with green antifreeze and other older versions of antifreeze compounds, red antifreeze is more stable and it improves the water pump life.
Can I use green coolant instead of orange?Can I mix green coolant with orange coolant? This is one of those questions usually asked after the fact, and usually engine damage has already occurred. The green and orange coolants do not mix. When mixed together they form a gel-like substance that stops coolant flow, and consequently, the engine overheats.
Article first time published onWhat vehicles use red antifreeze?
Red Antifreeze They are meant for Japanese, European, and Asian vehicles. You can use this type of antifreeze for Nissan, Hyundai, Toyota, and Honda vehicles. Most red coolant is termed as ‘Dexcool.
What is pink antifreeze used for?
Our specially designed formula for Audi ® 1997-2007, Volkswagen ® 1997-2008, Porsche ® 1999-2009, and Jaguar ® 1999 and newer. This technology regulates your engine’s temperature, prevents freezing and protects the engine from corrosion.
Can you mix red and blue antifreeze together?
Never mix different types of coolant Unless you’re an expert on the exact chemical composition and reactions of the various types, keep it simple and stick with what the manufacturer recommends.
What kind of coolant is pink?
TYPEINHIBITOR TECHNOLOGYCOLORHOAT (Hybrid OAT)Silicates & Organic AcidsYELLOWHOAT (Hybrid OAT, Phosphate-free)NAP FreeTURQUOISEP-HOAT (Phosphated HOAT)Phosphates & Organic AcidsPINK / BLUESi-OAT (Silicated HOAT)Silicates & Organic AcidsPURPLE
Is Prestone antifreeze green?
Prestone Prime AF3200 is a concentrated universal green antifreeze / coolant for use in automobile and truck cooling systems. This low silicate formulation is for vehicles already using a conventional coolant. Benefits of Prestone Prime: Meets or exceed ASTM requirements for cars, light-duty, and heavy-duty trucks.
Are all antifreeze compatible?
All antifreeze falls under one of three basic types. We will give you a brief understanding of each and why they are not compatible with each other. … Manufacturers recommended that you change the green IAT antifreeze every 36,000 miles or three years. IAT coolant was used in GM vehicles until 1994.
Why is a 50/50 mixture of antifreeze and water commonly used as a coolant?
Antifreeze is mixed in equal parts with water to create a coolant solution that provides both freezing and boilover protection compared to straight water. … When mixed in equal parts with water (50/50), antifreeze lowers the freezing point to -35 degrees F and raises the boiling temperature to 223 degrees F.
Is all green coolant the same?
Although ‘coolant’ and ‘antifreeze’ are often used interchangeably, they’re not quite the same thing. … Typically, Valvoline says, coolant comes in green. But there are other colors available: orange, blue, purple, even yellow and pink. However, they’re not different colors for appearance’s sake.
Can you mix red antifreeze with green antifreeze?
It’s perfectly backwards compatible if you want to do that. But you really don’t want to mix them, it’s not that good of an idea to mix them. If you want to have the correct coolant added for you, consider YourMechanic. They will be able to come to your home or office to perform this service.
What's the difference between green antifreeze and red antifreeze?
Green coolant is your conventional coolant (Ethylene Glycol base) and is the most common type of coolant found. Red coolant is typically has a base of Organic Acid Technology which has a different chemical makeup of green coolant and is designed to be suitable for aluminium radiators.
What color is SuperTech antifreeze?
Physical Properties and Chemical AnalysisSuperTechColor, (Visual)Yellow
What cars use green antifreeze?
VW, Audi, and Porsche are OAT users, too, but most others have resisted. Instead of OAT, most new cars now use a “hybrid” antifreeze that’s formulated with both OAT and the silicate inhibitors from green (Japanese hybrids have different inhibitors). It comes in too many colors to pretend this type is color-coded.
What happens if you put green coolant instead of red?
Some people believe that they can mix the two. This is a mistake and can lead to expensive repairs. The two coolants should never be mixed together as they do not react well. When mixed together they can form a thick, jelly-like substance that can completely stop all coolant flow which can lead to overheating.
Does orange antifreeze turn pink?
Yes it does, I have a new Ford Escape and the coolant was pink colored from the Ford dealer. John W. 3 of 3 found this helpful.
What is blue coolant used for?
Blue OEM Coolant Premix provides long-term protection against rust and corrosion for all materials used in the engine and in the cooling system construction. It protects cast iron, aluminium, copper and solder alloys as well as the hoses, seals and plastics used in the cooling system.
Can Yellow antifreeze mix with red?
You can mix two different colors of the same kind of coolant without any problem whatsoever.
Why is Toyota coolant red?
Is Toyota Pink Coolant Just Premixed Red? … The pink coolant is an OAT (organic acid technology) that typically has a longer service life. The red coolant on the other hand is an IAT (inorganic acid technology) that is considered to be more “conventional” but still longer lasting than some other coolants on the market.
What is G12 coolant?
Print. Valvoline G12++ Coolant Concentrate is a concentrated product based on monoethylene glycol and contains Si-OAT corrosion inhibitor technology to protect against limescale, corrosion, foaming, etc. As modern engines have high operating temperatures, they can easily reach damaging temperatures.
Are all pink antifreeze the same?
The color of the antifreeze does not indicate any difference in the properties of the coolant. It’s just that different companies use different colors, so consumers know which product they’re using just by looking at it.
Is universal antifreeze safe?
Which type of coolant should you use to top off or refill your cooling system? … Even so, universal coolants are formulated to mix with virtually any coolant. The makers of these product say their antifreeze can be safely used in any year, make or model of vehicle.
Can you mix pink and red antifreeze?
DO NOT MIX pink and red, they ARE NOT COMPATIBLE! You have an 02 4Runner, yours takes red, mix it with 50% water. Pink is a completely different coolant to the red, its not just premixed red.