In reviewing my service records I found an invoice from 2006 for an AC recharge. At that time I assumed they would use R12 as that was what was in the system. Wrong!!! In the fine print on the bill I noticed I had been charged for R134....it appears I have been using R134 for the past three years and did not even know it. I called the owner and let him know how I felt about them arbitrarily switching to R134. I would not have let them do it had I known. I told him I was holding him responsible for any damages that may occur to my AC system. I have been using this shop for almost 15 years and they have always been very reliable, honest, and reasonably priced. The original owner sold the shop about three years ago to his service manager who is the owner who I spoke with today. Looks like I am stuck with R134. I will keep a close watch on the AC...it is blowing cold air today. I have a hunch that within a year my indie dealer with be doing some "warranty work" for me. He has been put on notice. I know he does not want to lose me as I have been a valuable customer to him for many years. I'll let you guys know how it turns out. Thanks for all your input.

__________________
1986 560 SEL (159K miles)