Thank you! Do you happen to know if it's the same for 2017 outback? I see the same plug on my car but it seems rather low to the pan and I am curious how all the fluid that came out would go back in?? I carefully measured all that got drained and it came to 4.5 quarts. Does this seem correct?
There is more in the cooling system and the torque converter but you will likely not get that out without some heroic flushing techniques.
Just by pulling the drain plug you will usually get 4.5 quarts.
There is a different plug, higher up on the CVT, where you refill until the fluid comes out of that plug hole.
An often missed part of the transmission drain/fill procedure is an overflow line that will release about 8cc in to a different area (the bell housing) and you can drain that after you have topped off the CVT.
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This is a pretty thorough Youtube process of draining (flushing) and refilling the CVT. The only thing he missed was to drop the transmission pan and replace the sump filter and pan gasket.