SAE J 1379:1983-08-01

This recommended practice provides methods for determining rolling resistance data of highway truck and bus tires under controlled conditions. This procedure is intended to provide a way of gathering data on a uniform basis to be used in comparison with test results from road fuel economy basis. A companion document, SAE Information Report J1380, "The Measurement of Highway Truck and Bus Tire Rolling resistance," enlarges on this subject and gives background information.