i got my a/c charged today!!! after 2 yrs without it in the 110+ degree las vegas summers i decided i needed it. they checked the system and it was fine so they charged it with some stuff called freeze 12 it's compatible with R12 systems and costs $20/lb!!! they've been using it for about 6yrs and never had a problem with it. it blows cold air now, that's all i care /forums/images/icons/cool.gif /forums/images/icons/cool.gif /forums/images/icons/cool.gif /forums/images/icons/smile.gif /forums/images/icons/grin.gif . oh and these guys were awesome i didn't have enough money with me so they trusted me to go home and bring the rest of the money back. the've got my business now.