You need to have the proper compressor in order to convert without replacing the compressor. The seals will not hold the smaller R-134a molecules. Check the partnumber on your compressor and see if it is an R-134a compatible compressor.
I've successfully re-gassed many r12 systems with R134 and PAG oil using the original compressor and seals. R134 is a smaller molecule but the leakage issue is very nominal, perhaps a little more gas every couple of years. Tree huggers fire away.
This. I filled the stock set up with R134 about 3-4 years ago...still works fine...if any leakage has occurred, I am sure it's not worth worrying about.
Thanks again for the answer. I think I'll do that. Put 134 and live with the leaks. MeanM50, did you check the part number of the compressor or didn't bother al all??
I bought a proper valve and was able to put the new gas in it. And it works.
One minor thing is that I have cold air blowing in most of the vents except for the feet.
Found out that the AUTO buttons doesn't stay in. Well.
Best regards and thanks for the help
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