What Coolant 997C2S or Pure Water????

[Rob R]

The coolant on my 997 C2S (2005) seems low.

Can generic (Mobil) be used or am I better to use pure water until I can get it looked at on Monday? The Mobil detail does not say it CAN't be used but I have read on forums that Porsche has something specific..??

www.mobil.co.uk/UK-English-LCW/carengineoils_car-c...

Any help much appreciated please.