Volvo 240 excavator saves fuel. According to the public information of relevant platforms, the rated power of Kobelco 250 is 137 and that of Volvo 240 excavator is 130. Volvo 240 excavator is more fuel efficient than Kobelco 250. Volvo 240 * * * has several derivative models, of which the travel version accounts for two-thirds of the total sales.