Ok I understand what you mean. Instead of going that route I found this.
https://m.autozone.com/a-c-charging...-pro-46-pag-oil-charge-with-ice-32/424620_0_0
It's 1oz of pag oil, 1oz of r134a and 1oz of some other ice additive they use. I'll blast this in and then charge the system. Looks like I need 55oz. I bought 5 12oz r134a cans. I'll do my best to only put 6oz of that last can into the system.
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That is the pressurized can of PAG46 I mentioned earlier. It's the most common way to add oil.
Do it with can upside down.