Will R12 work with ester oil in the AC system rather than the r12 oil?  I
have an alternate Freon in the system that I used ester oil.  I ended up
buying 20 lbs of r12 Freon, rather than convert to 134 due to the varied
problems brought on by the process.

I probably go to a parallel flow condenser to increase the cooling of the
r12.

Thanks,

Robert