( Please, let's not start this thread again. The archives are overflowing with R-134 vs R 12. Moderator) For those of you interested in the going rates for AC work, I just heard from my local AC shop. To recharge my R12 will cost $165. To convert to R134 would cost $850, which would include a new compressor. (They tell me seals can't be replaced.) Bob Thomason #5252 [Non-text portions of this message have been removed]