Raw or unprocessed crude oil is not generally useful in industrial applications, so,
it must be refined by oil refining machine.
although "light, sweet" (low viscosity, low sulfur) crude oil has been used directly
as a burner fuel to produce steam for the propulsion of seagoing vessels. The
lighter elements, however, form explosive vapors in the fuel tanks and are therefore
hazardous, especially in warships. The oil refining operation, you must learn about it
if you plan to buy and use it.
Instead, the hundreds of different hydrocarbon molecules in crude oil are separated
in a refinery into components which can be used as fuels, lubricants, and as feed
stocks in petrochemical processes that manufacture such products as plastics,
detergents, solvents, elastomers and fibers such as nylonand polyesters. Petroleum
fossil fuels are burned in internal combustion engines to provide power for ships,
automobiles, aircraft engines, lawn mowers, chainsaws, and other machines.
This is oil refiner functioning.