1, according to the motor load and operating speed. Large load, low speed diesel engines should use high viscosity lubricants, small load, high speed diesel engines should use low viscosity lubricants
2 selection, based on measurements using geographical criteria category summer cold regions should be used viscosity, smooth oil.
Choose 3, based on diesel engine wear. When the vehicle is running smooth with low oil, multi-day high uniform temperatures of the region should use high viscosity heavy vehicles, normal operation of longer, should choose upon the viscosity, you should choose smaller oil viscosity.
International used truck vehicles, normal operation of longer, should be slightly larger in choice viscosity of oil.
