I was inspired by this video: this person used air compressor to push ATF out of his bottle to fill the transmission.
He did not mention how many psi in the video:
https://www.youtube.com/watch?v=a3M9itMA0DM
Then I wonder if I should test when a typical bottle would explode. Glad I did NOT!
Came across this video that says a 2L Coke bottle (which is similar in term of plastic material to the Lemonade bottle)
exploded at 150 psi.
So, at
5-10 psi, I think it is safe for our use of pushing oil out of the Lemonade bottle lol...
https://www.youtube.com/watch?v=PXeZIISDiNw
https://www.youtube.com/watch?v=r3RP0trKgI0