The Porsche fluid is BASF Glysantin G40. Just in case you won't like to buy directly from Porsche:
G40® | Glysantin®
Or in detall:
Brand since year: | VW norm: | BASF norm: | Color:
Porsche since 1996 | G12+ | G30 | redviolett
Porsche since 1997 | G12++ | G40 | redviolett
Regards, Markus