Originally Posted by
Psycho Warren
bit overkill IMO.
Think of the amount of water in a cooling system. Even in a hard water area the amount of crap that will come out the coolant with repeated heat cycling is minimal.
Its not like a kettle where there is a large flow through of fresh material daily. Its generally a sealed system irregularly changed.
If you're struggling with coolant performance, every little helps. If it's readily available then there is little reason not to use it.