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Old Aug 31, 2012 | 10:16 AM
  #121  
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Originally Posted by odessade
what do you think of adding either...... Purple Ice – Radiator Coolant Additive or Redline Water Wetter?

I like the idea of adding a little extra layer to provide rust and corrosion protection.....and maybe lower my temp a little in the process. Sounds like a win-win.

what do u thinks
The plain fact of the matter is you are wasting your money adding that stuff to your cooling system. Dexcool is designed to protect any and all metal components in your cooling system. If those additives made any difference in corrosion protection the powertrain cooling engineers at GM would add it to the content of Dexcool. Bill S.
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Old Aug 31, 2012 | 10:32 AM
  #122  
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[QUOTE=Cruncher;1581691988]The factory uses plain tap water w/Dex-Cool went filling up the cooling system on all of their vehicles. Dex-Cool neutralizes most of the minerals in tap water (I think this is in the owner's manual).

Who told you that?? If your area has a lot of mineral content it is not advisable to use "tap water". My owner manual says nothing about Dexcool neutralizing minerals in tap water. Bill S.
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Old Aug 31, 2012 | 12:36 PM
  #123  
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Darn. For 4 decades I've used water out of my garden hose when I did my own coolant change. I had some of those vehicles 10/15 years. Never one issue with corrosion. Not one. Some of that water was water from the city and it had fluoride and no telling what else in it. Some from a well. I have a 2000 New Holland tractor that I've changed coolant in it three times since new. 50/50 whatever coolant and well water. Inside the radiator of it shows no corrosion.
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Old Aug 31, 2012 | 01:29 PM
  #124  
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Originally Posted by Ketchum
Darn. For 4 decades I've used water out of my garden hose when I did my own coolant change. I had some of those vehicles 10/15 years. Never one issue with corrosion. Not one. Some of that water was water from the city and it had fluoride and no telling what else in it. Some from a well. I have a 2000 New Holland tractor that I've changed coolant in it three times since new. 50/50 whatever coolant and well water. Inside the radiator of it shows no corrosion.
Good for you. Here in Fort Lauderdale we have very hard water with high lime. It tears everything up.
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Old Aug 31, 2012 | 03:11 PM
  #125  
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Originally Posted by Ketchum
Darn. For 4 decades I've used water out of my garden hose when I did my own coolant change. I had some of those vehicles 10/15 years. Never one issue with corrosion. Not one. Some of that water was water from the city and it had fluoride and no telling what else in it. Some from a well. I have a 2000 New Holland tractor that I've changed coolant in it three times since new. 50/50 whatever coolant and well water. Inside the radiator of it shows no corrosion.
You are fortunate that you have good water in your area of GA. Unless you know that the water in your area is low or free of minerals you run the possibility of cloging coolant flow passages.
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Old Aug 31, 2012 | 05:29 PM
  #126  
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Really never thought much about it. Even shops I worked and then managed never thought about it. Always used what came out of the tap. Used the same to top off battery's. Never had water that I worried about what was in it. Always had good taste also. Did not realize it was such a issue elsewhere.

Last edited by Ketchum; Aug 31, 2012 at 08:11 PM.
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