The function that the correct type oil of the lawn mower for the machine is: Lubricate, lower the temperature, clean , strengthen the piston to seal. When machine use for a while , you should change the oil in time, or will accelerate the wearing and tearing of the machine, reduce the service life of the machine, even will cause scuffing of cylinder bore, connecting rod rupture . So, should change the oil regularly according to the direction to guarantee the normal use of the machine. |