SDHNTR

I don't use my AC that often and it is still working now (just not as cold as it could be), so I don't want to convert to 134a. Can I just dump in a can of Freeze 12? It says it is compatible and you dont need to remove existing R12. To what psi should I fill it to?

Of the two ports on my compressor, which is the low one for the fill? The red or the black?

andrewflores17

wish i had a better awnser but my advice dont mix r12 and 134a otherwise the ac people will throw a tantrum and want a ton of money to fix it i had my neighbor throw in r22 (hot shot ) ac gets to 28 F ice ice baby so if you know a local guy who refills the ac in frezzer trucks thats were id point you .02

SDHNTR

Not planning on mixing R134. Interested in Freeze 12 specifically. Supposedly you can just dump it in with existing R12.

duck tape

NO!
red discharge blue/black suction
refer to an ambient air temp / system pressure table
freeze 12 20% hcfc 142b and 80% hfc 134a
http://www.epa.gov/ozone/snap/refrig.../refblend.html