Product Code:SAE J1341 Title:Test Method for Measuring Power Consumption of Hydraulic Pumps for Trucks and Buses Issuing Committee:Truck And Bus Engine Committee Scope:The testing technique outlined in this SAE Recommended practice was developed as part of an overall program for testing and evaluating fuel consumption of heavy-duty trucks and buses. The technique outlined in this document provides a general description of the type of equipment and facility which is necessary to determine the power consumption of these engine-driven components.