For like $20 you can get certified to purchase R-12, which is actually -dropping- in price as fewer and fewer cars need it. I got my certification at http://www.epatest.com/ They provide a free manual with the answers to the questions right on the site it, and it's an 'open book' exam. You can pass it by simply searching for key terms in the PDF for each question. I just bought 3 cans of R12 on eBay this morning from a local fellow for $12 a can -- that's CHEAPER than R12 at Autozone right now. On retrofitting, I did write an article on retrofitting R134a for DeLoreans, which is still 99% applicable to all of the Chrysler systems. You can see it at http://www.dmcnews.com/Techsection/r134.html -Dave EPA Section 609 certified! To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/