Plastic and just about any other lubricant including of course oil
How do you make electicity out of oil
The oil refineries make crud oil.
the answer is oil
to make 1 oil 1 oil 2 bateries then robotics
Humans make oil naturally. If you have greasy skin, try rubbing it on a piece of glass. You will notice that it smudges. That is the oil coming off you skin.
Crude oil
Coz they make to filtering it not fir oil consumption
earth+knowledge=oil
chip oil or fat
Water + Coal = Oil
Low oil pressure
Toyostove and Oil Miser both make them.