What is the preferred way to do an correct coversion to a R-134 system? My car has leaks, and rather than repair an obsolete system, I'd like to do a proper job. Problem is, Three shops have given me different opinions as to what needs to be replaced. Nobody has R-12 around here anymore, and specially ordered R-12 is over $50 per pound. It isn't so much an issue of saving money as much as it is doing the job once.
Anybody have experience with this issue? Thanks.