Antifreeze Question
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From: High Point, NC
OK now that everyone thinks this is as clear as mud, I found this article...
The full article can be found here -> The Color of Antifreeze and is dated April 2005.
Inorganic Acid Technology (IAT) is the chemical composition for the traditional antifreezes that are green in color. An IAT can be used with either ethylene glycol (EG) or propylene glycol (PG). The normal IAT service life is two years or 30,000 miles (50,000 km).
Organic Acid Technology (OAT) was the first LLC / ELC introduced in North America in 1994. OAT antifreeze had been widely used in Europe before its introduction in North America. OAT can be either EG or PG but is mostly EG based. Its first dye colors were orange and red. These dye colors are still used by General Motors and Caterpillar. Green, pink and blue have been added to the list of available OAT antifreezes. It is recommended that OAT not be mixed with any other antifreeze technology. The normal OAT antifreeze service life is 5 years or 150,000 miles (250,000 km).
Hybrid Organic Acid Technology (HOAT) is a combination of IAT and OAT with nitrites added. This makes HOAT suitable for use in both light duty and heavy duty systems. Currently, two manufacturers are using HOAT for their vehicles. Daimler/Chrysler's version is dyed orange and contains 10% recycled antifreeze. Ford Motor Company’s version is dyed yellow and does not contain any recycled antifreeze. Both of these HOAT antifreezes use the marketing designator of GO-5. They are compatible with each other but mixing them with IAT or OAT is not recommended. The normal HOAT antifreeze service life is 5 years or 150,000 miles (250,000 km)
Organic Acid Technology (OAT) was the first LLC / ELC introduced in North America in 1994. OAT antifreeze had been widely used in Europe before its introduction in North America. OAT can be either EG or PG but is mostly EG based. Its first dye colors were orange and red. These dye colors are still used by General Motors and Caterpillar. Green, pink and blue have been added to the list of available OAT antifreezes. It is recommended that OAT not be mixed with any other antifreeze technology. The normal OAT antifreeze service life is 5 years or 150,000 miles (250,000 km).
Hybrid Organic Acid Technology (HOAT) is a combination of IAT and OAT with nitrites added. This makes HOAT suitable for use in both light duty and heavy duty systems. Currently, two manufacturers are using HOAT for their vehicles. Daimler/Chrysler's version is dyed orange and contains 10% recycled antifreeze. Ford Motor Company’s version is dyed yellow and does not contain any recycled antifreeze. Both of these HOAT antifreezes use the marketing designator of GO-5. They are compatible with each other but mixing them with IAT or OAT is not recommended. The normal HOAT antifreeze service life is 5 years or 150,000 miles (250,000 km)
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Originally Posted by biz4two
Green = 30,000 mile change interval
VC-4
GOLD (yellow) = 60,000 mile change interval
VC-7
Orange = 100,000 mile change interval
VC-2 and VC-3
Green = 30,000 mile change interval
VC-4
GOLD (yellow) = 60,000 mile change interval
VC-7
Orange = 100,000 mile change interval
VC-2 and VC-3
Guess I'll have to start looking into this.
Cheers Willis
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