Arrangement for determining the oil consumption of an oil-lubricated machine, such as an internal combustion engine, of a compressor, of a turbocharger (33) or a pump, comprising an oil circulating system (11), the starting from an oil reservoir (3) by means of a starting line (13) for oil-lubricated machine and, via a return line (37) back into the oil container (3), and a balance (7) for determining the weight of oil (5) in the oil tank (3), characterized in that a device (25) for heating oil in such a manner, the starting line (13) is associated with that the oil before the reaching of the oil-lubricated machine to a predetermined operating temperature for the oil-lubricated machine is heatable, that a temperature sensor (53) for determining the oil temperature, downstream of the device (25) arranged in such a way that the temperature sensor (53) with a temperature controller (51) is connected, the means (25) in such a way that the oil to a predeterminable operating temperature for the oil-lubricated machine is brought, and that a pressure sensor (21) for determining the oil pressure upstream of the device (25) is arranged, whereby the pressure sensor (21), with a pressure regulator (23) is connected, the one in the starting line built-in oil pump (15) controls.
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