R12 is still available and legal, however have you priced it lately, or the
"disposal fee" they'll tack on to your bill? Most shops don't even want to
deal in R12. They've made it so expensive that its cheaper to convert over
to R134a. If a R134a conversion is done correctly (total vac of the system,
replace R/D, and install correct valves and orifices), you'll never know the
I have a 92 LT1 and it was converted to R134a before I bought it in
2004. I'd say its pretty cold.....I had it charged 2 years ago.
Problem is my car is all black.....if its out in the sun and you get
in....takes a while to cool down.
Plus it has the blue opaque roof.
When we went to Fla I ran the a/c on medium speed (5) and it was fine
My a/c guy (Griffin, San Diego) persuaded me to
keep the C4 on R12, with a UV-florescent dye, to
spot leaks before they get costly. This and
insulating the exhaust forward of the cat. has
worked for me. There's plenty of "recycled" R12
in San Diego; however, I'm close to the Mexican
border so don't know the "ethnicity" of the stuff.
Here's a comment on R12a (a hydrocarbon):
> I've seen somewhere that the Aussies use R12a.
Also, suggest: Google for <frigc> and <FR-12>.
That was the darling of easy, low-cost
conversions a couple of years ago. It hasn't
caught on where I live.
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