Auto Coolant Discussion

"An antifreeze is an additive which lowers the freezing point of a water-based liquid and increases its boiling point." Coolant

"An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert and neither causes nor promotes corrosion of the cooling system." Antifreeze

"There are three main types of coolant that car companies use:

- Inorganic Additive Technology (IAT),

- Organic Acid Technology (OAT), and

- Hybrid Organic Acid Technology (HOAT)."

Choosing the Right Coolant for Your Car

"ZEREX™ G-40® Antifreeze/Coolant provides unsurpassed protection for vehicles requiring genuine G-40 and G 12 ++ fluid. This Original Equipment Manufacturer (OEM) approved formula ensures you are getting the precise factory-filled original formula for your European vehicle. ZEREX G-40 is a premium grade, long-life coolant that employs nitrite, amine and phosphate-free, Si-organic acid technology (Si-OAT) to protect the cooling system from rust and corrosion. ZEREX G-40 chemistry will not void vehicle manufacturer warranty. Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications." Valvoline Zerex G-40