Last time, we used sesame seed oil - there probably isn't any here.
Any kind of oil - edible or otherwise! ?
The aliens apparently use it to keep their machines working.
If the aliens use oil to keep their machines working, where's the nearest machine? ?
It might be screwed shut.
In the facility hallway, you'll find a large machine on the far left side.
Use the wrench to get it open, and you'll be rewarded with machine oil!
Next up - the plant!