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Some Statistical Aspects of Testing Engine Oils for Fuel Economy
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English
Abstract
Currently there is considerable interest in developing fuel-efficient engine oils. However, this development is hampered by the fact that the variability of automobile fuel economy tests is often as large as the fuel economy benefit being measured. It is essential, therefore, that tests of fuel-efficient engine oils be statistically designed and properly analyzed. In this paper, we discuss the strengths and weaknesses of various designs and describe the proper ways of analyzing such data. In addition, general guidelines are presented for determining the test fleet size and amount of replicate testing required.
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Citation
Jones, E. and Painter, L., "Some Statistical Aspects of Testing Engine Oils for Fuel Economy," SAE Technical Paper 790951, 1979, https://doi.org/10.4271/790951.Also In
References
- Owen D. B. “Handbook of Statistical Tables,” Reading, Massachusetts Addison-Wesley 1962
- Natrella M. G. “Experimental Statistics, NBS Handbook 91,” Washington, D. C. U.S. Government Printing Office 1963
- Bowker A. H. Lieberman G. J. “Engineering Statistics,” Englewood Cliffs, New Jersey Prentice-Hall 1959