Disclosed is a method for precisely sensing an amount of laundry of a washing machine without influence of static friction. The turbocharger includes a turbine housing having a first area in which exhaust is carried to a turbine wheel and in which the turbine wheel is essentially situated and having a second area connected axially to the first area, such that the first area and the second area are essentially separated from one another by a separating element. The protective agent is an organic compound comprising carbon, and at least any one of nitrogen, oxygen and hydrogen. Any selected number of valves can be opened with the same size balls.