That depends on what freon you are using. Most of the time, Oil only needs to be put in if the system has been evacuated. If you are just adding a bit of freon because you may have lost some over the years, there is no need to add oil. Too much oil will hurt cooling. -----Original Message----- From: Ryan Foster [mailto:westiething@xxxx] Sent: Wednesday, June 13, 2001 8:24 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] A/C oil Is there any specific oil that should be used when charging the A/C? Ryan -