If I wanted to go back to R12 then Classic Air would have to re-restore compressor and drier at the least...
Why? If the components were "rebuilt to be compatible for BOTH R134a and R12" a simple change in refrigerant shouldn't be a problem.
Most current driers are compatible with both refrigerants, as is ester oil, so you can swap back and forth as desired.
Good point John.
Why can't I simply replace 134a with R12 .
I'm waiting to hear back from Classic Air to confirm.
What about the oil , per above reply each refrigerant uses a different oil , won't that require some work to flush the R134a oil out ?
"R12 uses mineral oil R134 uses ester or PAG oil."
