If a coolant is not chemically correct for the application temperature, the rates of corrosion, erosion, pitting, and scale formation will almost double for every 15 degree increase in temperature above 71.1 degrees Celcius.

This means that a poor quality coolant will corrode approximately 200% more metal surface on liners, coolers, heat exchangers, radiators, and other affected components in any given time period with temperatures at 86.1 degrees Celcius.

As water temperature increases, particularly at temperatures above 82.2 degrees Celcius, water becomes more acidic.

Carbon dioxide will convert to carbonic acid. Chlorides will convert from salt to hydrochloric acid and sulphate will not only form scale, but will form sulphuric acid, all of which can seriously affect cooling systems.

Coolant analysis is recommended at least once each year, whenever a coolant problem is suspected, or when the source of the water used is changed.