Does anyone on the forum have long term experience using Freeze-12 in their Pantera or other cars designed for R12. Had a service valve O ring malfunction on my Sanden SD 508 R12 compressor and lost part of my R12 charge. None of the shops around here have R12 and I didn’t want to change out my condenser, expansion valve, dryer and purge the system of the mineral oil so I could go with 134. One of the respected A/C shops recommended using Freeze-12 and said they’ve had good experience with it so I had them charge my system. So far it seems to be working as well as the R12 did. It was 86 degrees with hot solar heating of the interior today and after a 15 minute drive at 60 MPH the inside temp got down to 70 degrees in the shade. It is a little bit difficult to compare with my R12 testing notes because that testing was done at around 95 degrees and I was also getting a 70 degree inside temp. Here’s a link to that work http://www.panteraplace.com/page123.htm I am getting 38 degree evaporator exit temp at the air vents and around 39 to 40 degrees at 60 MPH.
Seems to work as well as R12 but I’m wondering about the long term. Support of the system with Freeze-12 in it is not a problem because that’s what my A/C shop uses. From what I can tell by Googling Freeze-12 there is a lot of miss information about it on the net.
Mike
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