1 small engine has two types of fuel: regular gasoline for 4-cycle engine or
mixed gasoline with oil for 2-cycle engine (smaller engines). If the engine
is on the ground type machine it is probably 4-cycle.
2 gasoline is same as used in a car. You may get it out of your car fuel
tank (I did it easy but not for everyone) or get it from gas station. You
need approved container to take the gasoline, for safety reasons and there
are laws for it.