Coolant needs changing because chemicals in the coolant break down and become less effective over time. This use ends up generating rust and sludge, which can damage the cooling system. If the cooling ...

The chemical composition of the Zerex G05 includes a main base that is formulated from a Hybrid Organic Acid Technology (HOAT) coolant; it is phosphate free, has low pH levels and silicate counts.

Organic acid technology (OAT) and hybrid organic acid technology (HOAT) coolants are emerging as the preferred solutions for modern vehicles. OAT coolant formulations use organic acids to inhibit ...