i think you're referring to R12

here in Mo. you have to have a license to buy it and use it.....
its on most vehicle 94 and older

but workin at O'reillys i sell R134 to people all day long

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1996 XLT 2.3T "White Lightning" 5/7 dropped, Turbo street toy
2006 FX4 Off Road, DD, work in progress
1985 XLT 2.8L 4x4 "The Black Pearl" (retired but still around)
1987 XL 2.3L 2wd R.I.P.