Development of Fuel Economy Test Procedures

This paper is a condensation of SAE Special Publication 561 which reports the “Development and Validation of the Joint TMC/SAE Fuel Consumption Test Procedure Type II - SAE J1321, October 1981, by a Joint Task Force” and the related “Truck Test Program” run at the Transportation Research Center of Ohio in the summer of 1980. A large part of the process of condensing the complete publication consisted of omitting entire sections or reducing them to a few sentences. Some new information has been added.