Hi Joe, I appreciate the information you have sent. I had the A/C shop fill my system up with 2.1 lbs R134a, which is what 960 grams converts to. They said the front seal on my A/C compressor may be seeping a little (there is no grease or dirt but a tiny bit of dye was detected), so I will take the car back in a month once it gets really hot out and I have used the A/C some more. But with a 2.1lb charge, the air was extremely cold out of the vents (almost as cold as my stock-134a Lexus) and it was so cold I had to turn the vents away from me because it was making the side of my jaw cramp!! The outside temp was only about 65 deg F however, so it remains to be seen how it will perform under 90+ deg F temps. I will report in about a month with some longer-term results. But, so far so good!! On a side note, this shop is really tops - they treat my car with the highest respect, and they only charged me $65 for a two-hour vacuum and refill!! They don't bill you while the machine is sucking down, since there isn't a tech working on it, unlike a shop I was at last year. At this price, I could just take the car in every three months and recharge it!! Thanks - Andy In a message dated 4/24/2007 6:41:45 P.M. Central Daylight Time, joe.dalton@xxxxxxxxxx writes: Hi Andy, Today I have visited my A/C man and he dug up the information he jotted down while changing my car's A/C to R134a. I wrote an article "for dummies" as they call it in the IT business which now is at his for review and comment. 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/ <*> 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/