In a message dated 1/5/2008 4:51:00 A.M. Pacific Standard Time, Chrysler300@xxxxxxxxxxxxxxx writes: I have a chrysler 300F will it hurt the compressor if I put in the latest new freon after purging the system? Regardless of what some might tell you, I recommend not doing this. Many technicians think that if you purge the system, change the receiver/drier, type of lubricating oil and o-rings, that older systems will work satisfactorily with newer refrigerant. This may be true for cars from the 80's on up, but (speaking from personal experience) it is not true for the more primitive a/c systems found on 60's cars like your 300F. The different pressures and temperatures of the newer refrigerant will confuse your system and result in the system running overtime. Your a/c will work okay and you'll think things are fine until after six months or so when your compressor burns up and seizes. I found out the hard way on my 1969 Road Runner. Go original. 300F'ly, Roger Karlson Santa Barbara, CA **************Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489 [Non-text portions of this message have been removed] 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 For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> 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/