How much radiator coolant to add to watercooling?

[treydawgwvu]

I am setting up my watercooling system tonight, and my father has a regular automotive radiator coolant. How much do i add to distilled water before i fill up my resovior? (what is a good % mix?)

 

[svol]

None as most anti-freeze coolants actually decline cooling abilities. What kind of coolant is it exactly?

My CPU fan spins so fast that it creates a wormhole

 

[LCARS]

The most cost common figure that I hear is 10% anti-freeze and 90% Distilled Water.