Recharging AC

[383drvr]

You have to flush the oil to get it out. I never had done this, and its working for me... You will be fine as long as there is just no freon in the system. However, if you dont replace the accumulator at the same time of the flush with a new dry one, you'll be doing this flush for nothing, as you cant flush the accumulator, and its saturated with alot of oil. I will be doing this full retrofit on my burb.
With that said, for when you do a flush, Pep Boys and Napa carry a big can of flush with a hose. You have to open the system (remove the accumulator/drier) and remove the line from the compressor, hook the flush hose up to the evaporator line and flush it, and then do the same for the compressor line and any others. Dont flush the compressor. Then hook up a new accumulator and replace the compressor lines to do it right. The last step in a good retrofit is to pull a vacuum in the sealed system to draw out any moisture, and then you can finally fill it with R-134. Others may fill in if I left anything out, which I'm sure I have...