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Question about using pure coolant

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Old Oct 26, 2016 | 11:27 AM
  #21  
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Originally Posted by CaliforniaJack
Ultra pure distilled water as used in semiconductor manufacturing is corrosive. The distilled water that you buy in plastic jugs is nowhere near as pure and is not corrosive.
YEP!!! On the submarine, we call it DI water. DONT DRINK IT! Great for batteries, bad for people. I use distilled water cause it doesn't contain any minerals. Some people have hard water. If you do, store brought water is an option or you can use distilled water. YES, clean tap water is 100% fine.

If it were me, I would test the coolant and see where you stand mixture wise. IF,,,,, the mixture is wrong, have someone that knows what they are doing properly drain, flush and fill the system with the proper mixture of WATER and ANTIFREEZE!

SIMPLE AS THAT!

Bill
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Old Oct 26, 2016 | 12:18 PM
  #22  
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Thanks for comments everyone. So I ended up checking the coolant and it looks like it's around 75/25 (coolant/water), which makes sense since only half of the coolant was drained and replaced with 1.5gallon of 100% coolant, the other 1.5 gallon of old coolant would have been 50/50.
I was planning on siphoning 3 or 4 quarts of coolant and adding 3-4 quarts of water, for now, until I see another mechanic to do a proper flush/replace of the coolant.

Last edited by hades1; Oct 26, 2016 at 12:20 PM.
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Old Oct 28, 2016 | 06:18 AM
  #23  
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Originally Posted by 8VETTE7
If it were my car and that is what the "mechanic" did there are 2 things I would do:


1) Make certain I did NOT ever go back to him and also insure his lack of knowledge/skills was well know to everyone I met.

2) Take the car to someone that will properly flush the system clean of the old coolant and then refill to a 50/50 mix. ASK before you have them touch the car.
Sounds like that mechanic would be one to avoid.
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Old Oct 28, 2016 | 09:47 AM
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Originally Posted by CaliforniaJack
Ultra pure distilled water as used in semiconductor manufacturing is corrosive. The distilled water that you buy in plastic jugs is nowhere near as pure and is not corrosive.
interesting. can you elaborate on that? whats the difference between distilled and pure distilled? how about the stuff comming out of an air conditioner?

i just read today about hot distilled water dripping on stainless and corroding it.

as there are no minerals in metals, what does pure water do exactly?

Last edited by romandian; Oct 28, 2016 at 09:47 AM.
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Old Oct 28, 2016 | 10:24 AM
  #25  
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Originally Posted by romandian
interesting. can you elaborate on that? whats the difference between distilled and pure distilled? how about the stuff comming out of an air conditioner?

i just read today about hot distilled water dripping on stainless and corroding it.

as there are no minerals in metals, what does pure water do exactly?
Ultra-pure distilled water can leach ions from metallic or even glass surfaces. I know it's strange to think of water as the thing that is absorbing stuff rather than that which is being absorbed, but that's precisely what can happen.

Have you ever had to maintain a plaster pool? Every so often you have to check the level of total dissolved solids because if it's allowed to drop too low the water will start to dissolve the plaster. So you dump in calcium chloride to bring the TDS level back up. ... same sort of thing
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Old Oct 29, 2016 | 10:52 PM
  #26  
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Originally Posted by romandian
interesting. can you elaborate on that? whats the difference between distilled and pure distilled? how about the stuff comming out of an air conditioner?

i just read today about hot distilled water dripping on stainless and corroding it.

as there are no minerals in metals, what does pure water do exactly?
There are many means of purifying water. I called it pure distilled for our discussion. The corrosive water is actually De Ionized water and is pure as possible. Distilled water still has ions in it and is not corrosive. The reason De Ionized water is so corrosive is because it wants to pull ions from its surroundings to fill its void.
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