Tap or distilled water w/ Dexcool?

[Bill in Utah]

CAN we please keep the thread on Subject?

 

[GMBoy]

Originally Posted By: XS650
Originally Posted By: GMBoy
Interesting fact - if you read your owners manual you will see that GM recommends Dex Cool along with clean drinking water. They never mention distilled water. Look it up - it'll be in the recommended fluids section.


This is a general comment, not about GM or American products.

I will put that water recommendation in the same category as lifetime lubricants on new cars.

This is not a general comment - it is a specific to GM cars comment. All GM owener's manuals say to use clean drinking water with the DexCool.

 

[Paulson]

I used reverse osmosis in my 96 blazer along with oreilly unmixed antifreeze. I would never use my regular well water! That stuff is so full of iron and I hate it!

Reverse osmosis gets rid of most of the [censored] in the water.

 

[ItsuMitsubishi]

I always used distilled and always have shiny, spotless cooling systems even at very high miles. I mean "factory clean"!