Gang, Despite the fact that the can says "To be used by EPA certified personnel only," I picked up two cans of R-416A yesterday. (a.k.a. FR-12.) Since my A/C clutch cycles once every few seconds and the air coming out is as warm as when I merely use the vent, I believe I can safely assume that the system is free of coolant. In the DML archive there are posts which say "mixing refrigerants is dangerous" and others which say "it's not dangerous, but technicians won't touch your car if you mix refrigerants." The guy at NAPA who has worked on my other car for years says that I can put FR-12 into a system with a tiny amount of R-12 in it and have no ill effects. My car has NOT undergone a conversion to R-134A. Even if there is any R-12 left in the system, it can't be that much, since the a/c clutch engages so many times per minute. So following the fuel distributor O-ring replacement (which should be fine now that the car has been sitting for the better part of a week -- assuming I can find torque specs for the silly M5 bolts), I will fire up the car and charge the system with R-416A as my next task in preparation for Gettysburg. :) Just for a change, the list of things to do on the car is getting shorter not longer ... heh. Cheers, Farrar Hudkins #2613 (auto) ------------------------------------ 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/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/