Sounds like magic foo foo dust to me. We have never used it, staying with factory coolant and distilled water, and never had any of the dreaded "seal failures"...............
And by-the-by, like most modern coolants, Porsche coolant is silicate free.
Perhaps this product is supposed to be used if you do not have access to distilled or deionized water, and have to use tap water with minerals in it, which is a problem.
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Last edited by JFP in PA; 06-02-2020 at 07:23 AM.
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