The Figure shows a construction of Renault, the Trans-gear fluids, whose behavior on the secondary speed is shown in diagram. The line appears, caused by the mitansteigende speed of the gasoline engine - a curved path with low values. Likewise, on the diagram recognize the corresponding primary speed, goes down very much in start because the engine is not able to raise the huge pulse power during idle. He is so down in speed, and the characteristics of such engines is judged by the size of the engine loads.