Refrigerant Options

[1987 GMC Jimmy]

So here's the deal. I've got a compressor that's not the Original Harrison Automotive R-12 unit. There's a sticker on top of the accumulator that says "R-12 and R-134a Compatible," which I'm guessing is for the compressor. It needs to be recharged with refrigerant. Should I keep R-12 and hunt for someone who can buy it, evacuate it, charge it, and leak check it, or should I switch over to 134a since I have a compressor that says it'll take either?

 

[CSFJ]

Make the switch. R 12 has become unobatium. Pretty sure it hasn't been manufactured in a long time. If you did find someone with a supply, I would question how pure it is, if its been recovered. A lot of these systems get contaminated over the years, so when they get evac'd all kinds of crap ends up in the tank. Plus it would cost a metric shitload more than just running the 134.

 

[smoothandlow84]

X2 with switching to r134a. Here in Phx, its available from private parties at $45-$65 per can...limited supply. On the same note r134a here is $8 per can if bought by the case. There are a lot of ac techs selling it way cheaper than the box stores ($17 a can ).