Description
- ZEREX Original Green, when diluted 50% with water, protects modern engine components from winter freezing and summer boil over. The chart below provides mixing information. ZEREX antifreeze coolant is compatible with many American brands of coolant. It contains a high quality defoamer and will not harm gaskets, hoses, plastics or original vehicle finishes.
- ZEREX antifreeze coolant meets ASTM specification D3306 for automobiles and light trucks and ASTM D4985 for heavy duty trucks. It contains less than 250 parts per million of silicon as required by the heavy-duty trucking industry. Valvoline recommends the use of a supplemental coolant additive (SCA) for heavy duty applications.





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