Read this and see if it now makes sense to you
This guide breaks down the most common types of antifreeze by their commonly associated colors. Not all types of antifreeze are covered.
Green
If you have a green coolant, you have Inorganic Acid Technology (IAT) coolant. This type of coolant is the original type of coolant on the market. This means that if you drive an older model car, it likely still uses green antifreeze.
This type of coolant is sometimes referred to as conventional low-silicate coolant. This is because it uses silicates as corrosion inhibitors.
Historically, a green-dyed coolant was designed for cars and small trucks. You would have to dilute the coolant with water and “pre-charge” it with supplemental coolant additives. These additives were designed to protect engine cylinders from corrosion.
Orange
An orange coolant typically indicates that you are looking at Organic Acid Technology (OAT) coolant. This type of coolant uses organic acids as an inhibitor.
This is the type of coolant usually required for GM, Saab, and VW vehicles.
OAT coolants do not have nitrites added. Contamination with nitrite – such as if you were to add the wrong type of coolant to the system – can drastically reduce the performance life of the OAT coolant.
Orange-dyed coolants typically protect an engine for 600k miles, as long as they remain pure and uncontaminated.
Yellow
A Hybrid OAT (HOAT) coolant is also an option. It is typically dyed yellow.
This type of coolant mixes technology from the first two to create a low-silicate, nitrite technology. It contains both silicates and organic acids as inhibitors.
Ford, Chrysler and some other European companies recommend this type of coolant for their cars.
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.
Red
If you have red coolant in your cooling system, you have Extended Life Coolant. This coolant is recommended for use in Toyota, Scion and Lexus.
It can be used in any engine requiring a OAT engine coolant.
Red coolant offers 150k miles of protection. Like other OAT coolants, don’t mix it with nitrate or silicate-based antifreeze.
None of us are trying to be an butt either, but you have to remember many of us have been working on these for 12-15 years and longer and have been on the various forums and have seen and read what happens when say wrong coolant is used or it mixed . Just like some parts have to be MOPAR for example, the Zone parts simply do not work , so take it with a grain of salt . I;m sure you could teach a thing or two about overseas bikes , I've only ran Harleys for the last 45 years so only time I worked on one of those *** bikes was building a 750 Kaw with a big bore kit back in 87 to drag race, so , ....