There are Oil Pots on the ground near the Resistance Base Find them to obtain Karena Oil Some pots could be empty. After getting the oil talk, to Jimmy Perkins at the Resistance Base.
Jimmy Perkins: I have the steel I need. It will make a great Jimmy Perkins: frame since they're of great quality! NakanoAzusa: Then you have everything you need? Jimmy Perkins: Ha! Not even close! HiiragiKagami: What else do you need? Jimmy Perkins: I need oil - the kind with the highest quality from Jimmy Perkins: Karena. It will serve as the fuel for demolisher. NakanoAzusa: So the machine is not operated using caelium? Jimmy Perkins: No, this demolisher is designed to be operated Jimmy Perkins: with oil. NakanoAzusa: But where do I find it? Jimmy Perkins: Hahaha! No worries. What's swarming outside of Jimmy Perkins: the base like ants are the White Lions, and Jimmy Perkins: they're from Karena. Since they have soldiers who Jimmy Perkins: use Madfa, they must have oil on them. NakanoAzusa: I see. HiiragiKagami: Then you want us to go steal the oil? Jimmy Perkins: It's part of war strategy to steal from your enemy! Jimmy Perkins: If you look carefully, there should be jars where the Jimmy Perkins: White Lions are. It's likely that the oil is inside Jimmy Perkins: those jars. Please bring it to me.
Reminder Dialog
Jimmy Perkins: Some jars may be empty. Don't give up easily, Jimmy Perkins: just keep looking!