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Re: Distilled water for coolant? Necessary or no?
Posted to Technical Theory Forum on 2/2/2018

My thoughts are that the OEs, or many of them, must have a reason for specifying distilled or deionized water. Coolant chemistry has certainly changed since the days when every vehicle got good 'ol green mixed with tap water.

[Having said that, some OEs reco... Login to read more.