METHOD AND CONTROL UNIT FOR OPERATING A DIESEL INTERNAL COMBUSTION ENGINE OR A DUAL-FUEL INTERNAL COMBUSTION ENGINE OPERATED IN THE DIESEL MODE

摘要

A method for operating a diesel internal combustion engine(1) or a dual-fuel internal combustion engine (1) operatedin the diesel operating mode, wherein the internalcombustion engine (1) to be operated is supplied withlubricating oil via an oil circuit (3), wherein ameasurement value of the total base number and/or ameasurement value of the viscosity of the lubricating oilcurrently used in the oil circuit (3) for the lubricationis detected, wherein dependent on the establishedmeasurement value of the total base number and/or dependenton the established measurement value of the viscosity anexchange oil quantity for the oil circuit (3) isdetermined, wherein currently used lubricating oil to anextent corresponding to the exchange oil quantity isremoved from the oil circuit (3), wherein new lubricatingoil to an extent corresponding to the exchange oil quantityis supplied to the oil circuit (3). Fig. 1