There are a number of R-12 replacements. The one I thought promising was R-406A (http://www.autofrost.com). This site has links to good info on the use of Freon alternatives. Or, you can just check what I said 3 years ago: http://www.dmcnews.com/backissues/2001%20files/%5BDML%5D%20Digest%20Number%20586.html Geez, have I been posting for that long? In the case of Autofrost, they claim that a blend allows for higher efficiency, but since a blend will not leak all of it's different molecules at the same rate it cannot be "topped off". And I agree that most shops will not touch Freon-alternative equipped cars, but most shops won't touch a DeLorean, anyway. :-) Gus Schlachter Austin, TX VIN #4695 DMCVIN6683 wrote: > Freeze 12 i believe is petroleum based if i remember correctly. > > Mark > > On Thursday, February 12, 2004, at 06:10 PM, Soma576@xxxxxxx wrote: > > > In a message dated 2/12/04 7:58:50 AM Central Standard Time, > > darkstarmedia@xxxxxxxxxxx writes: > > I work at an auto parts store and know that freeze 12 is junk. it is > > a mix > > of r12 by-products and r134a along with a few other chemicals. it > > works ok > > but no one will want to service it if they know it's in there. it has > > the > > habit of wearing seals and compressor bearings due to it's > > unpredictable > > chemical makeup. > 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/