June 21, 200618 yr Author comment_171843 I am running 134a Link to comment https://www.classiczcars.com/forums/topic/20484-ac-receiver-drier-help-fast/?&page=2#findComment-171843 Share on other sites More sharing options...
June 22, 200618 yr comment_171848 134a is kind of hard on the old R12 systems. You should try Redtek or ES-12. You don't need a liscense for either of those and they perform better than 134a in a R12 system. Link to comment https://www.classiczcars.com/forums/topic/20484-ac-receiver-drier-help-fast/?&page=2#findComment-171848 Share on other sites More sharing options...
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