Do I really need the super special $200 Porsche coolant?

[Nickanator8]

Hey all, my Boxster started leaking coolant from somewhere (not the coolant reservoir, it's the new one with the new cap) but only intermittently and from somewhere I can't find. I have an emissions test I need to get done this month so I need to get the car back up and running ASAP, but I also suspect I will need to do some work on the coolant system in the near future which means doing a full drain and refill probably in the early winter.

In doing my due diligence I found that the official coolant for these cars from Porsche is $200 for a 20L jug, and that feels very expensive. Is it truly necessarry to put liquid gold into my car's circulatory system or can't I just put the euro car formulation in there and call it good? Especially considering my time crunch and the high liklihood I'll be draining it again this winter I'm inclined to go with the generic stuff, at least for the rest of thw driving season.

Anyone have any insight or experience in this matter?