Oilmaster monitors the oil level when the ignition is switched on and automatically adds oil when necessary. In that case, the system will then pump a small quantity of oil from the integrated reservoir to the engine sump. Because of the monitoring frequency and the addition of oil when required, the engine can always run at the perfect oil level. In general, this level is substantially lower than the maximum level mark on the dipstick. This accounts for a major part of the profits that the Oilmaster generates day in, day out - oil consumption is substantially lower at low oil levels, and far less oil is required than usual, when changing oil. This rapidly increases financial benefits, especially when expensive oil is used. And of course the environment also profits from the minimal oil consumption.