You may want to go to www.autorefrigerants.com. I converted all my R-12 cars to this formula. Got 39 deg air out. All I did was flush, new oil, and recharge. This is just another option you may want to explore. Nico Over Va. Beach, Va 64 SF 451 4 spped 63 Dodge 330 63 Dodge 440 SW ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.