I intentionally recovered the refrigerant out very quickly to make a little bit of refrigerant oil come out with the refrigerant so I can show you just for experimentation.
On this vehicle with the refrigerant fitting up so high in the system and I would normally start the refrigerant recovery process with the valve throttle back to slow down the refrigerant recovery procedure so it would not rapidly lower the pressure in the system making it bubble up and foam up That causes the refrigerant and the oil to bubble up forcing the oil out through the service valve.
(Oil removal is preventable)
By just slowing down the recovery procedure
![](https://s2.save4k.ru/pic/02Z_s2N6Qyg/maxresdefault.jpg)