Adding A/C Oil

I'm about to tackle the dreaded evaporator core but have a quick question. The FSM says that when the evap is replaced, to add 2oz. of PAG 100 oil (I'm doing the accumulator as well and it calls for 4oz.) so I have a total of 6oz. to add to the system. HOW DO I DO THIS? I was thinking of just using an eye dropper or something and dropping 2oz. into the evap before I put it in and 4oz. to the accumulator but is there a preferred way to do this? I don't wanna screw it up and the FSM doesn't really specify a method......

the oil is mixed with the freeon as it is circulating throught the system, most recovery/charge machines add the oil as it is being charged, if u are adding your own freeon, u can pour the oil into system before connecting th ehoses

you can also get the oil in 4oz charges from autozone. It will connect right up to the hose you use for the freon

If the compressor doesn't have a fill hole, I put it in the hose, then push it in with freon. They actually have a tool for this. You can drain the accumulator and see how much oil comes out, it can migrate.

I ended up picking up 8oz of PAG100 for about $15...damn this stuff is expensive.....