A/C question R12 or 134a ??

[Sqrlnts]

So I just purchased a used AC compressor for my hatch. Question is do they still charge up cars with R12? Is it pricey? Would it be more cost effective to have it converted to R134a? Does this require a new compressor?
Thanks chaps!

[93mustank]

I just bought the r134a conversion kit from walmart. Comes with the new fittings. Run one bottle through and flush out. Then fill back up.

[Sqrlnts]

Cool, so the 134a you put back in came from the little self fill service bottles you can buy anywhere? Did you have to do anything special for the oring seals, oil wise? How does it cool compared to R12?

[93mustank]

Yup anywhere....I just got the whole kit. Came with three bottles and the fittings. Nothing special with the rings. Have not filled mine up yet. Doing some finishing touches on my car. Have done it on other mustangs. Blows colder.

[Sqrlnts]

Does it not require that you evacuate the system at some point?

[93mustank]

Not that I know of. i just let the r12 into sweet mother earths air. Put one bottle of r134a in. released it out. then filled the system back up.

[santa_rosa_lt1]

Not that I know of. i just let the r12 into sweet mother earths air. Put one bottle of r134a in. released it out. then filled the system back up.

*knock on door

[Steve2000GT]

r12 or freeze 12, both are alot cooler than r134a. Checkers sells the kit for like 30 bucks to do the conversion. You will need a lisence to buy freeze 12, which you can still get at some places. I bought the cans for 6 dollars a piece and just kept my foxbody r12.

[4Jenna]

r12 blows cooler, 134 is less efficient


my notch was already converted to 134 when I got it.

[Sqrlnts]

r12 blows cooler, 134 is less efficient


my notch was already converted to 134 when I got it.

That is what I heard as well. My old vert was converted before I bought it and it didn't seem to cool as well as my other mustang which was R12.