I’m glad you asked this question! An electric motor requires much simpler maintenance than an internal combustion engine. With no friction between any moving parts or exchanges between liquids and gases, it needs neither lubricant nor exhaust.
With an electric motor, there’s no need for oiling, because it doesn’t work against any moving parts. The only maintenance required is replacing worn brushes—which is a very easy task.
The second benefit of an electric motor is its ability to run perfectly without using any fuel whatsoever. This helps cut down on emissions and pollution even more than if the car were powered by a combustion engine!