Determination of states, based on the viscosity class and new oil on a dielectric sensor and a viscosity sensor

A lubrication system for an internal combustion engine and a method for monitoring the lubrication system will be described. The lubrication system generally involves lubricant from a reservoir (ie, a reservoir) through a filter system in the engine and back to the reservoir into circulation. The lubricating system includes a controller that monitors a dielectric constant of the lubricant and a viscosity of the lubricant. Based on the dielectric constant of the controller can determine whether it is in the current flowing through the lubrication system lubricant to new lubricant (eg. As recently replaced lubricant) or old lubricant (eg. As lubricant, which has already been sufficiently reduced in order again lubricant can be distinguished to) acts. If old lubricant is determined, the viscosity of the lubricant with threshold viscosities compared to dynamically determine when the lubricant must be replaced.