There are several different oils used in an airplane. Engine oil, fuel oil, hydraulic oil etc.
Oil is used in any airplane which has an engine of some type. This oil is used to lubricate moving parts (much the same as in a car).
Most use Synthetic Oil.
Yes, you can take an empty oil can on an airplane. The oil can must be cleaned and can not have any residue in the can. The residue can be cleaned by using hot soapy water.
To pump oil around the engine where it is needed.
After every flight a plane changes its oil
The first airplane was used for travel in the year 1921
Depends on the airplane size and engines used.
Check the lubrication order for your airplane, because not all airplanes use the same lubricants.
No, it is a noun. It can be used with other nouns as a noun adjunct, in such terms as airplane food and airplane wings.
the elevators on an airplane is used to change the airplane's pitch. The pitch of an airplane is what makes the airplane go up and down without turning, if you turn, that would become roll.
Long distances