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urban_legend · 07-22-2009, 04:36 PM

They claim to be Porsche approved and when I called they claimed to be the OEM provider. Said Dex Cool is fine and all the same formulations.

In any event, I would just do the flush and refill procedure and not sweat it that much. The problems, as far as I can tell come from mixing different coolant types, having the wrong proportions, or not using distilled water.

07-22-2009, 04:36 PM	#9
urban_legend Registered User Join Date: Feb 2009 Location: Ann Arbor, MI Posts: 287	Prestone web site... They claim to be Porsche approved and when I called they claimed to be the OEM provider. Said Dex Cool is fine and all the same formulations. In any event, I would just do the flush and refill procedure and not sweat it that much. The problems, as far as I can tell come from mixing different coolant types, having the wrong proportions, or not using distilled water.