How can I lubricate my door so it wont creak?

Think its from animal fat you have a rare chance of getting when you cut animals.

Of which you will need a hunting knife to do so

Sure about animal fat? The german translation of the tips in the cloud synchro screen tells me to use engine oil. But I found no option to use it so far.

Ive 8 motor oils at my base, Ill check tonight and report back but Im sure my friend tried it and no option to grease the door was available.