Posted by: SteveKfl
« on: October 06, 2021, 02:53:33 PM »Don't forget the GM "Dexron" orange for aluminum components. Here are some other colors too...
Organic Acid Technologies
During the 1990s, cooling system components shifted to more aluminum and nylon, so coolant was reformulated to protect these new materials. 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. HOAT coolants are often yellow or orange but may also be blue, red or pink. Both of these types are long-life coolants and may last up to five years or 150,000 miles before they need to be replaced.
Previous paragraph taken from an "interesting read", linked here...
https://itstillruns.com/difference-between-dexcool-coolant-regular-coolant-12196331.html
Organic Acid Technologies
During the 1990s, cooling system components shifted to more aluminum and nylon, so coolant was reformulated to protect these new materials. 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. HOAT coolants are often yellow or orange but may also be blue, red or pink. Both of these types are long-life coolants and may last up to five years or 150,000 miles before they need to be replaced.
Previous paragraph taken from an "interesting read", linked here...
https://itstillruns.com/difference-between-dexcool-coolant-regular-coolant-12196331.html