OK I buy a 90 Crx si almost bone stock. A/c works but it doesn't trows any more cold at temperature at 104f and 105. But at night it colds Good. So I know forsure it need to be recharge, I ask the old owner if he converted to R134a and he say no that he used the R12. Well I don't have access to an R12 freon or have a certification to buy it. What do I need to convert to R134a. New seals or something. I have the valve adapter for the R134a that's all. Also can I just drain the old freon( with that little compressor or what ever it is) ( R12) and add the new one R134a.


Also sorry for any misspending my first language is not English.