View Single Post
Old 11-14-2017, 04:35 AM   #2
schnellman
Registered User
 
schnellman's Avatar
 
Join Date: Oct 2008
Location: Ohio
Posts: 868
No to straight water

You should be using a 50/50 blend of water and coolant year 'round. The coolant has additives that not only prevent freezing and raise the boiling point, but provide rust protection and lubrication. Porsche recommends its own (expensive) brand of coolant. However, any good brand such as Prestone, will do. And, leaving the system dry is not a good idea.
schnellman is offline   Reply With Quote