Hi guys,
Here is the update. I found my old invoice from the AC job. It is indeed r12 still. I don't know how I missed that originally...I could have sworn he was going to convert it. I'm actually glad he didn't. So now I just have to ask for a recommend on stop leak. The leak was very slow, so I'm hoping some over the counter life support could do the trick.

thanks again, opossum

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German autos!!!
'67 250se coupe
'89 190e 2.6
'05 BMW x5
'59 0319 diesel Omnibus.
Italian bikes!!!
'64 Lambretta Special 185 hot rod scooter
'66 Lambretta SX200
'59 Lambretta 250 race bike
'70 Lambretta GP200
'77 860gt ducati
'66 ducati monza