What is the difference between Hoat and OAT antifreeze?
OAT (Figure 1) — OAT technology doesn’t use phosphates or silicate additive packages as in IAT coolants. HOAT (Figure 2) — HOAT technology contains organic acids and several inorganic additives. HOAT applications typically contain silicate. This works great for aluminum engine and cooling system components.
What vehicles use Hoat coolant?
Phosphated HOAT Phosphated HOAT coolant is usually recommended for use in vehicles manufactured in Asia, such as KIA, Honda, Hyundai, Nissan and Toyota vehicles. Due to heat transfer issues, Asian car manufacturers require the use of this type of coolant.
What color is Hoat antifreeze?
The Colors of Coolant
|OAT (Organic Acid Technology)||Organic Acids||ORANGE|
|HOAT (Hybrid OAT)||Silicates & Organic Acids||YELLOW|
|HOAT (Hybrid OAT, Phosphate-free)||NAP Free||TURQUOISE|
|P-HOAT (Phosphated HOAT)||Phosphates & Organic Acids||PINK / BLUE|
How long does Hoat coolant last?
Most of today’s factory-fill coolants have OAT (Organic Acid Technology) or HOAT (Hybrid Organic Acid Technology) corrosion inhibitors with a service life of five years or 150,000 miles.
How do I know if my antifreeze is Hoat?
Car manufacturers like Ford and Mercedes Benz generally use HOAT coolant brands in their cars. There are also some HOAT antifreezes that are a turquoise, pink, purple and blue color. This does not mean that you can mix an IAT coolant and an OAT coolant together and, voila, you have a HOAT.
Is Dexcool Hoat coolant?
Dex-Cool® is an OAT, an ethylene glycol based antifreeze that is nitrite-, borate-, phosphate-, nitrate-, amine-, and silicate-free with the same metal wear protection as an IAT antifreeze. Dex-Cool® is trademarked by GM. HOAT (Hybrid Organic Acid Technology) Mixture of OAT and IAT antifreeze.
Can I use Hoat coolant?
HOAT coolants, like the IAT coolants, require additives mixed back into the coolant system every 25k miles, or as specified by the engine manufacturer. HOAT coolants formulations are not compatible with OAT coolants because they do contain nitrites. They should not be mixed together.
Is Dexcool a Hoat?
Dex is an OAT, Mopar is a HOAT. They don’t gel up when mixed because they’re very similar to begin with, only difference being that the ‘H’ in HOAT is ‘hybrid’, meaning it has added silicate for better corrosion resistance.
Is Prestone antifreeze Hoat?
Yes. Prestone’s Coolant/Antifreeze is guaranteed to be compatible with all cars, vans or light trucks. Thanks to its unique and patented formula, Prestone Coolant/Antifreeze remains the only coolant on the market that can be mixed with another product within the cooling system without causing damage.
Can you mix DexCool with Hoat?
Dex is an OAT, Mopar is a HOAT. They don’t gel up when mixed because they’re very similar to begin with, only difference being that the ‘H’ in HOAT is ‘hybrid’, meaning it has added silicate for better corrosion resistance. The only time you may have a problem is mixing a phosphate type green coolant with OAT or HOAT.
Can you mix Hoat with regular antifreeze?
What is the difference between Hoat coolant and oat?
What Is A HOAT Coolant? HOAT stands for Hybrid Organic Additive Technology. Think of a HOAT antifreeze as the best of both worlds when it comes to coolants. These HOAT antifreezes are usually dyed a yellow color by the manufacturer and, simply put, is a mixture of an OAT and an IAT antifreeze coolant.
What does Prestone Hoat antifreeze do for a car?
This extended-life coolant with its patented formula works with light-duty trucks as well as with all car models and makes. The Prestone HOAT antifreeze provides as high degree of balance and increased protection against extreme temperatures, while its silicates provide rust corrosion in cooling system materials such as aluminum surfaces.
What does Hoat stand for in organic acid technology?
HOAT stands for Hybrid OAT or Hybrid Organic Acid Technology. This coolant is a mixture of IAT (Inorganic Acid Technology) and OAT (Organic Acid Technology) coolants. Typically, its color is dyed yellow, but it also comes in turquoise, pink, blue or purple colors.
Can you mix Hoat coolant with IAT coolant?
There are also some HOAT antifreezes that are a turquoise, pink, purple and blue color. This does not mean that you can mix an IAT coolant and an OAT coolant together and, voila, you have a HOAT.
Which antifreeze’s are Hoat?
HOAT stands for Hybrid Organic Additive Technology. Think of a HOAT antifreeze as the best of both worlds when it comes to coolants. These HOAT antifreezes are usually dyed a yellow color by the manufacturer and, simply put, is a mixture of an OAT and an IAT antifreeze coolant.
What is Hoat antifreeze coolant?
HOAT is the universal long life coolant that mixes with anything. This is your orange and yellow colered dexcool compatible Prestone as well as Zerex and Peak and a number of other store brands. Dexcool is an OAT coolant which is not compatible with some of the older antifreezes that are or were on the market. HOAT and OAT are…
What is the best antifreeze for a car?
Dex-Cool is the antifreeze recommended by General Motors, the company that makes Chevys , as the best antifreeze for their automobiles. It is an orange color, to truly differentiate it, and is an extended-life coolant, known to work up to 100,000 miles.
What are the types of antifreeze?
There are 3 basic types of antifreeze used today, ethylene glycol based, propylene Glycol based and the newer Organic Acid Technology. The biggest thing to look out for is using the organic acid technology (OAT) in older vehicles with brass or copper radiators.