Heat engine oil dilution determining method for e.g. oil vehicle, involves comparing values of measured resistance and capacitance with zone of values of another resistance and capacitance situated above reference curve

摘要

The method involves measuring the electrical resistance (R0) and electrical capacitance (C0) of a heat engine oil to be evaluated. Values of measured resistance and capacitance (R0, C0) are compared with a zone (Z) of values of electrical resistance (R) and electrical capacitance (C) situated above a reference curve (CR) corresponding to the evolution of resistance (R) based on the capacitance (C) for the oil without coolant dilution. An independent claim is also included for a device for determining dilution of heat engine oil, comprising a measuring unit.