R12 - illegal, flammable. I recently did a lot of reading on this topic, and I think both are incorrect. Handling R12 requires EPA 609 certification (obtainable online for $15) and it costs more per unit volume than most other options. However, it is still legal, despite what the local Jiffy Lube says when asked to do R12 work. :-) Some people advocate propane or other flammables as a drop-in replacement for R12, but the original R12 is less combustible than R-134a even. --Greg #2894 On 6/20/05, Chris Hawes <chris@xxxxxxxxxxxxxxxxxx> wrote: > I am nearing the end of rebuilding my aircon system (evaporator blew) and wondering what gas would be best. To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/