We do AC service at the shop I work at; Freeze 12 is cr@p. Smart
on changing the reciever/dryer. Watch to make sure you hook up
the right hoses to the right side (high side/low side). Flush
the system, completely. As the oil from R-12 and R-134a are not
compatible, thusly, will eventually goop-up and clog the system
(have fun after that on replacing everything.) In most cases,
unless you change out the O-ring seals, with the cross-over of
gases, highly expect to do the change out with-in an average of
a year of the new exchange. (I've seen systems survive without
changing the o-rings, talk about walking on thin ice...) I only
mention that, so hopefully you wont have to re-charge the gases
again.
I'm missing something here else to cover. Ok, someone else who
knows fill in the blank..________
Good luck hope this saves any headaches in the long run.
By the way, average prices in my area of SO Cali; R-12 around
$50/lbs. and R-134a around $12/lbs. Roughly, pending supply and
demand.

Michael

> On Sat, 18 Aug 2001 22:46:56 -0500 John Rodgers
> <jhrodgers@CHARTER.NET>
> writes:
> > I must swap over to another gas for the AC in my '88 GL.
> Looking at
> > R134a kit from Wally World and a new receiver/dryer from The
> Bus
> > Depot.
> > Will service the system myself.
> >
> > Anything to watch out for as a first timer. And how does
> R134a
> > compare
> > to Freeze 12, and any suggestions as to where to find Freeze
> 12???
> >
> > Thanks,
> >
> > John Rodgers
> > 88 GL driver in HOT old Birmingham, AL

=====
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