Quote Originally Posted by Railroad View Post
Maybe, As I understand the water wetter products, it reduces the film strength of the water, like a water softener.
This allows the coolant to have better surface contact inside the engine and radiator, improving heat transfer from the surfaces to the liquid.
It may not be needed, but the advantages are there.
If you run no or low percentages of antifreeze, the wetter products contain anti corrosion agents.
What's not to like.
Quote Originally Posted by BEAR-AvHistory View Post
Believe its a case of "if it ain't broke don't fix it". If a distilled water & antifreeze mix maintain the proper operating temperature for the car under all conditions you experience why add anything else? What is the benefit?
as railroad said, it improves the surface contact of water, not saying anything is broke, but I have had favorable usage in my daily drivers for years

that being said, I'm curious why everyday coolant manufacturers don't add this already to their 50/50 mix (or even concentrate) - maybe some do?