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SAE J1256 (OCT2002)

Current Revision

Fuel Economy Measurement--Road Test Procedure--Cold Start and Warm-Up Fuel Economy

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This procedure is a modification of the urban driving cycles noted in SAE J1082 and which is run on a suitable road or test track. The procedure yields cold start/warm-up fuel economy values indicative of consumer level at the ambient condition of the test. Within referenced limitations, the procedure can be utilized to determine the fuel economy differential among vehicles or between vehicle changes. Purpose This SAE Recommended Practice provides a uniform test procedure for measuring the fuel economy of light-duty vehicles during cold start and warm-up operation (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg GVW (10 000 lb) or less) on suitable roads.

SDO SAE: SAE International
Document Number J1256
Publication Date Oct. 25, 2002
Language en - English
Page Count 21
Revision Level 200210
Supercedes
Committee
Publish Date Document Id Type View
Oct. 25, 2002 J1256_200210 Revision
June 1, 1995 J1256_199506 Revision
Oct. 1, 1988 J1256_198810 Revision
June 1, 1980 J1256_198006 Revision
May 1, 1979 J1256_197905 Revision