I still have a working York, and some cans of R12...where the hell is the "oil filler" forthis compressor, and how do I fill it without having all the old Freon shoot out everywhere? Help

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1976 300D
190,000 Miles
Colorado Beige

1975 300D
Parts Car
78,000 Miles
Rustbucket
Also Colorado Beige

1984 190D 2.2 (Dad's)
156,000 miles
Champagne Metallic Clearcoat