The coolant is formulated to prevent these reactions and protect the system when mixed with water some coolants state that tap water can be used also and that s also why the coolant water mix has to be replaced from time to time 5 years generally for the oat formulated coolants 2 years for the green silicate based ones even if stated as.
Where to buy deionized water for coolant.
What is the best type of water to use in my cooling system in this post we would like to address this topic as the plethora of misinformation regarding this topic has easily made it.
There is no way i would put deionized water into my automotive coolant especially considering the cost and risk.
Avoid peeking in the radiator more than necessary it lets air in that is absorbed in the solution.
De ionied and distilled water were called aggressive water by the water doctors at where i worked.
Pure coolant has none of these properties but it becomes a magical elixir for your engine s cooling system when it is mixed with water at a 50 50 ratio.
Apr 26 2018 by.
Hoping the corrosion inhibitors stop that process is a risk.
Look at the corrosion test results above.
Thus the best mix for a climate like ours is a 10 90 or 20 80 mix of antifreeze coolant and distilled water.
We get this question all the time when talking to customers on our tech line.
The deionized water will always be looking to satisfy its demand for ions hench the term hungry water.
With distilled water costing a dollar or less why invite trouble.
Whether you know it as coolant or antifreeze this product is really just an additive that when mixed with water serves to broaden the range at which that water will freeze and boil.
Continue reading below we want to use distilled water and not ordinary tap water that has minerals to prevent lime scales from forming inside the cooling system.