The main function ofthe lubrication system is to circulate and deliver oil to the surfaces of all the moving parts in orderto reduce friction. B.
The lubrication system is fed by the oil pan that forms the lower enclosure of the engine. C.
The main components of lubrication system are oil pump, oil filters, main oil galleries, oil pan, oil pressure regulators, relief valve and oil coolers. D.
The lubrication system is used for collecting, cleaning, cooling and re-circulating oil in the engine.