Description:

Valvoline ZEREX™ G-93-94 corrosion inhibitor concentrate is added to the cooling water of internal combustion engines requiring no freeze protection. At a concentration of 10% by volume, Valvoline’s ZEREX™ G-93 affords excellent protection against cavitation and corrosion to all metals and alloys commonly used in automotive cooling systems. Aluminum, ferrous metals, and yellow metals are well protected.
Valvoline ZEREX™ G-93 also prolongs the working life of water pumps and heat exchangers. It is primarily intended for applications in heavy duty MTU diesel engines. Such engines are common in marine and industrial applications.
The coolant mixture should be prepared with tap, demineralized or deionized. The dilution water should be a clear and free of suspended matter or solids. It should also have minimal hardness. Salt water, sea water, or industrial waste water should not be used. The analytical characteristics of the water should be within the water quality table guidelines for hardness, chloride and sulfate content. The water should be treated by suitable means if it does not fulfill the stated requirements.