Can anyone help with me with my AC?

[NYC-SE]

Originally Posted by SirDigby

WTF is 12a refrigerant?

https://en.m.wikipedia.org/wiki/HC-12a

[SirDigby]

Originally Posted by NYC-SE

https://en.m.wikipedia.org/wiki/HC-12a

oh great. propane and butane mixture for replacement in a R12 system.
yeah, differently do not put that in your car...

[tmontague]

Originally Posted by SirDigby

oh great. propane and butane mixture for replacement in a R12 system.
yeah, differently do not put that in your car...

Read more on the topic before you come to conclusions. To put it in perspective my 2010 outback has a total of 6 ounces of r12a in it. It would combust formless than half a second if ignited.

And yes even r134a is flammable once mixed with a/c oil, not to mention the 45L of combustible fuel behind our passengers seats.

R12a runs at lower high pressure and very slightly higher low pressures so the low pressure switch has no issue recognizing the system is filled. The overall system just runs at lower head pressures which arguably can mean less wear and tear on the system. It is not a patentable refrigerant unlike Dupont's so conveted r134a. Interesting how as soon as a patent wears out suddenly a "new" refrigerant comes to the market.

Up here we cannot buy r134a without a refrigerant license so r12a is the only option (more economical as well) to do our own a/c work. Also is can technically be vented to atmosphere as it is not ozone depleting

I do agree not to use stop leak products unless you are just trying to get rid of the car