Re: how do you make the a/c colder?

[Michael Hogan <mikhogan@stic.net>]

Are you sure about this?  I was concerned, so I grabbed a can from the case
in the garage to check.  Contents: 1,1,1,2 Tetrafluoroethane.  Sounds like
there's some flourine in there somewhere, and curiously, nowhere on the label
does it warn about being explosive, or even flammable ( it does however warn
about contents under pressure!). 

>You lose 20% of the cooling capacity when you change from R-12 to
>R-134a. In addition, the pressure generated by the R-12 compressor is not
>high enough to take full advantage of the R-134a characteristics.
>    BTW, R-134a is a mixture of propane and isobutane. Something to keep in
>mind in a front end collision with that condensor hanging out in front. The
>automotive engineers apparently believe the risk is acceptable, but I would
>think there is a good chance of a fireball with a couple of pounds of
>barbecue fuel spewing out of a ruptured condensor.

Mik Hogan
87 CGT