I've heard this before, I can't prove it, though. I've had Freeze-12 in my system for a few years now. I know I have a slow leak, but I had it with R-12 so I know it isn't caused by the Freeze-12. So far everything still works just as it should. I am, however, planning to totally go over my A/C system this winter so I won't have anymore leaks. Matt Olans VIN 16816 --- In dmcnews@xxxxxxxxxxxxxxx, Jason Ferrara <jason@xxxx> wrote: > > I believe, and someone correct me if I'm wrong, that there is an > issue with Freeze-12 and slow leaks. > > Freeze-12 is a blend of R-134a and R-142b. Its the R-142b that > carries the oil. If you have a slow leak, the two gasses will leak > out at different rates, with the R-142b leaking out faster. You can > end up with still enough refrigerant for the compressor to run, but > that refrigerant will be mostly R-134a, and no longer capable of > carrying the oil used in R-12 systems. So the compressor will destroy > itself due to lack of lubrication. 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/