I use Pentosin, it's pink and it's what the VW Dealership's use, and the label list Porsche also. It's in my VW Jetta and my Porsche. You can buy it at Advanced Auto for much less money. Be sure as other's say top off with Distilled Water. You are looking at 5 gallons I believe of coolant in the Boxster.
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Artic Silver Boxster S - Black Leather - Black Top - Convience Plus Package
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