Posts Tagged: Coolant types
Coolant types — What’s the difference between coolants?
Coolant types — What’s the difference between IAT, OAT, HOAT Automotive coolants are divided into two main categories: the older “Green” Inorganic Acid Technology (IAT) coolants and the newer organic acid technology coolants (OAT, HOAT, PHOAT, and NHOAT). What does coolant do? • Removes combustion generated heat from the engine • Prevents freezing • Prevents corrosion due to oxidation and galvanic corrosion • Prevents/reduces cavitation • Lubricate the water pump. What’s in coolant? Approximately 95% of coolant is mono-ethylene, polyethylene, or polypropylene glycol. The other 5% are the lubricants, anti-foaming … Read More
Dangers of mixing different coolants
Dangers of mixing different coolants Why you should never mix different types of coolants. Carmakers know the types of metals used in their cooling system along with the different types of plastics, rubber and gasketing materials. The coolant they choose must be compatible with all those materials. But not all coolant types are compatible with all types of metals, plastics, rubber and gasketing materials. In fact, if the wrong coolant is added to an engine, the additives can actually accelerate corrosion and damage the plastic, rubber and gasketing materials. Mixing … Read More