Pardon?Well thats good however according to the Amsoil site its not recommended for use with strickly water. So even if it is glycol free what are you going to do with it?
"Recommendations: Dominator Coolant Boost is recommended in racing applications using straight water as coolant
Dosage: For straight water applications, add 2 fl. oz. of Coolant Boost per quart of tap or softened water."
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-Jamie M.