« on: Apr 02, 2011, 07:42:17 PM »
Well, I just went and bought a compressor and a dryer designed for R134 and an expansion valve for R134. I did have the option to get R12 specific parts.
I am running ester oil since the old system had mineral oil. That's what I was trained to use with the Cat retro fits and never had a problem. Most had GM or Sanden compressors. In new R134 systems we used PAG. Factory fill was PAG also.
Thanks for the link yotarunner. I'm aware of some of the "R12 Direct Replacements". I finally ran out of R12 and it's too risky to buy it now. You don't have a clue what is really in the bottle and I'm not buying a unit to test it.
I asked about the newer parts because I thought maybe the condenser or evap might be larger or more efficient. I'll update this post once I get it up and running. Thanks for the input guys.
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