Subject: Re: Water Wetter from RedLine Author: jimcash : member since July, 2005 : 1383 posts Posted on: 2009-06-26 10:05:23

Shayne was not trying to say you are telling lies - just that he disagrees with the issue of needing this for clearing small bubbles of air.

He is correct - you will not get bubbles in a properly sealed and bled system.

This is NOT like the inside of that glass which is at room temperature. When an automotive coolant system gets hot it creates high pressure throughout the system - and that causes all those tiny bubbles to be compressed and actually disappear as the gas is absorbed by the liquid. Any larger pockets of air that may still be lurking in some spots will gradually migrate to the upper rad where they are diverted to the top of the expansion tank - and can be bled off in the bleed process (which must always be done a few times after a rad has been serviced).

Eventually almost all of the air is removed this way. It is true that when a system cools that some bubbles may reform - but they are minor and will again be absorbed at the next heating.

I have even seen a couple of reports that coolant with water wetter does not actually carry as much heat as a straight 50/50 coolant/water mix - but I can not find those reports at present and I am not sure how accurate they were.

There are some people who use water wetter with the intent that it will help their system run cooler. This is NOT the case as the cooling system (thermostat, engine computer, etc) are designed to have the engine operate as specific temperatures. In normal operation they actually increase the operating temp (to about 108C) for optimum operation efficiency.

I think that if this stuff was a real help then the makers of coolants would be putting it in their product themselves - perhaps as a premium product. But since they do not, and since car makers do not recommend this I "suspect" the value is "iffy" at best.

If you, or others, have other evidence or data then it would be interresting to hear.

Cheers
Jim Cash

• Water Wetter from RedLine - linhtad341 2009-06-24 03:21:59 (124 views)
  • Don't use it in G-48 (BMW OE coolant) - surly 2009-07-11 18:55:09 (96 views)
  • Re: Water Wetter from RedLine - Shayne 2009-06-24 04:19:05 (98 views)
    • Re: Water Wetter from RedLine - poolman 2009-06-24 08:04:30 (99 views)
      • Re: Water Wetter from RedLine - Shayne 2009-06-25 02:02:59 (84 views)
        • Re: Water Wetter from RedLine - poolman 2009-06-26 09:20:52 (108 views)
          • Re: Water Wetter from RedLine - Shayne 2009-06-26 19:46:55 (85 views)
          • Re: Water Wetter from RedLine - jimcash 2009-06-26 10:05:23 (102 views)
            • Re: Water Wetter from RedLine - poolman 2009-06-26 12:13:41 (82 views)
              • Re: Water Wetter from RedLine - Shayne 2009-06-26 19:52:11 (94 views)
                • researched it a little - rick540 2009-07-03 11:02:09 (55 views)
                • Well I researched it a little - rick540 2009-07-03 11:01:06 (54 views)
                • Visited their website - rick540 2009-07-03 10:59:41 (62 views)