The cost of R12 varies a great deal. The use of R12 is illegal in some places and requires certification in others. It is estimated that a pound of R12 currently costs approximately $20 US dollars.
Why would you want to even consider doing this? R12 is no longer in production and as such it cost almost 4 times as much as R134. But to answer your question, use R12 in a R134 system and you will destroy the compressor as the oil is not compatible with R134 oil.
It came with R12. Due to the high cost of R12, I suggest you convert it to R134a.
2 pounds of r134a. Not r12.
R12 unless it has been retrofitted. I would suggest have it changed, as the cost of R12 is prohibitive.
You do not as R134a is what is approved for that car. If you could find R12 it would cost you near $100.00 a pound.
It came with R12 Freon. As R12 is cost prohibitive, have the unit converted to R134a refrigerant or a similar substitute.
It came from the factory with R12. Due to the cost of R12 I suggest you have it converted to run on R134. Have the leak fixed and convert it to R134 and save yourself some big money. R12 is no longer in production, and is very, very, expensive.
It came from the factory with R12. Due to the high cost of R12, I would have it converted to R134.
At UNISA the fees varies from R12 587 to R13 373. At Wits the fees varies from R36 640 to R38 260.
There is only one Freon, and that is R12. R12 Freon came installed in your 1991 Chevy. It may or may not have been changed over to R134 Refrigerant. If not change it over, as the cost of R12 is unbelievably high an is no longer in production.
It came from the factory with R12. Due to the extremely high cost of R12, I would suggest you convert it to R134a. Kits are available at most auto parts stores.
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