Castrol R

[Mike Arman <armanmik@n-jcenter.com>]

>Date: Wed, 2 Sep 1998 17:39:59 EDT
>From: Myke456@aol.com
>Subject: Why pressure in coolant system?
>
>Can someone tell me why coolant systems are made to develop & maintain
>pressure in them?
>
>  ([____]=====OOOO=====[____])   87 5kcsTQ, 223k miles
> []]]]]]]][Mike Aiello][[[[[[[]     original owner
>

Easy - to increase the sales of radiator caps, hoses, and sundry other bits!


Actually, because water boils at a higher temperature under pressure than
at atmospheric pressure - normally water boils at 212 degrees F or 100 C,
but at atmospheric (14 psi) plus (say) 7 psi in the cooling system, it
won't boil until it is somewhat hotter - someone probably has the
pressure/boiling point chart, but I don't.



Best Regards,

Mike Arman