I told you, that's the stuff Jiffy Lube (now at Sears) puts in instead of R12 these days. I'm aiming to try it. -- Dan Simoes dans@ans.net ANS Communications http://coimbra.ans.net/dans.html 100 Clearbrook Road (914) 789-5378 (voice) Elmsford, NY 10523 (914) 789-5310 (fax)