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Subject:Re: I lost my cool!!
From:Mike S
Date:Sun, 8 Jul 2012 22:02:24 -0400
On 7/8/2012 9:05 PM, Dave Mcneely wrote:
> Hmmm..... .  The AC Pro stuff I saw today at AutoZone is R134a.  The
> fittings for R134a and R12 are different of course.  If your vehicle
> has not been converted, it is R12.

Good catch. R134a systems are required by law to have different
fittings, which would point to it being an unconverted R12 system. R134a
requires a different lubricant (PAG or ester), because it won't
effectively carry the R12 lubricant (mineral oil) through the system.
The result is a ruined compressor.