I would disagree…
That tank clearly has both liq and gas withdrawl.
You can both “push with N2” OR distill directly from it
what pressure do you imagine the head space is in this tank at 25C? (go look it up!)
what is the pressure in your “source tank” when you wish to “top it up”?
…and don’t do that. Distill. because: Mystery oil with no opinion just facts