> Someone asked: If these properties were that beneficial, then wouldn't the
> coolant
> manufacturers and car manufacturers specify it as a required ingredient
> in coolants ?
>
> Possible answer: Well, you know, maybe no one just ever thought about
it....
>

Don't count on the manufacturers of coolants to take it upon themselves and
actually spend EXTRA money on improving their products when the competition
isn't doing so.  Same applies to cars and others products.  Many of the
'improvements' we see in cars today were thought of years ago, but were not
applied to mass production because no one else was doing it.  Corporate
laziness?  Competition tends to wake them from their comfortable slumber.