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Originally Posted by djomlas
when i had my cap problem, i flushed mine w the yellow bottle Prestone, said for all cars and all models.
and it was like 274359832758374 times cheaper than porsche coolant.
no problems with it
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Hi,
That was probably not the best thing. The coolant you describe contains silicates and these can form a gel reducing/blocking Coolant Flow, this problem has come up on several Boxsters.
In addition, this type of Coolant insulates the metal of the engine (read below) and causes a reduced heat transfer (not a good thing on an alloy engine). If it were me, I'd drain it and flush it ASAP and use the proper Extended-Life Coolant...
Happy Motoring!... Jim'99