This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
“LABORATORY OCTANE RATINGS WHAT DO THEY MEAN?”
Annotation ability available
Sector:
Language:
English
Abstract
The results of several anti-knock studies are discussed in this paper. Road anti-knock performance for 1000 fuel blends covering the years 1940 to 1957 have been investigated. The laboratory Research octane numbers of these fuels covered the range from 80 to 105. The fuels were evaluated in 46 cars representing a cross-section of the automotive products for these years. The objective of these investigations was to determine the practical application of the laboratory to road octane rating relationships, and the effect of vehicles, and operating conditions on these relationships.
The results show that there is a valid correlation between laboratory and road octane ratings. The relative importance of Research and Motor octane ratings on road performance is influenced by make of car, engine speed, throttle position, and distributor advance characteristics. It also indicated that aromatics improve, whereas olefins reduce high speed Modified Borderline ratings.
The correlation equations developed are valuable in predicting road performance from laboratory octane ratings. They could be very helpful to the automotive industry in tailoring engines to match available fuels.
Authors
Citation
Fell, R. and Hostetler, H., "“LABORATORY OCTANE RATINGS WHAT DO THEY MEAN?”," SAE Technical Paper 570099, 1957, https://doi.org/10.4271/570099.Also In
References
- Barnard D. P. V Fell R. B. Scott E. H. Weather or Lock Vapor Lock Study, Road and Laboratory Presented at the SAE National Fuels and Lubricants Meeting The Mayo, Tulsa, Oklahoma November 8-9 1956
- Buerstetta F. D. Healy W. C. McGuire W. J. Sorensen E. E. Practical Design of Better Fuels - A Statistical Approach to Road Performance Studies Presented to a session on fuels and lubricants during the 21st Midyear Meeting of the American Petroleum Institute's Division of Refining May 15 1956
- Buerstetta F. D. Warren T. W. Octane Possibilities with C 7 -C 8 Hydrocarbons Presented at California National Gasoline Association Meeting Los Angeles, California October 1955
- Corner E. S. Octanes - From Laboratory to Road Presented at SAE Summer Meeting (Atlantic City) New Jersey 'June 1956
- Domke C. J. Esau N. D. Gray D. S. Taliaferro H. R. Fuel Anti-Knock Performance in High Compression Engines Presented at SAE Summer Meeting, (Atlantic City) New Jersey June 1956
- Du Pont De Nemours & Company, Inc. E. I. Technical Conference Notes , 1956
- Greytak J. J. Bellah J. E. Morris W. E. Road Octane Numbers of Tomorrow's Gasolines in Tomorrow's Cars Presented to a session on fuels during the 22nd Midyear Meeting of the American Petroleum Institute's Division of Refining Philadelphia, Pennsylvania May 14 1957
- Kerley R. V. Thurston K. W. The Knocking Behavior of Fuels and Engines Presented at SAE Golden Anniversary Fuels and Lubricants Meeting Philadelphia, Pennsylvania November 1955
- Morris W. E. Effect of Gasoline Sensitivity on Road Octane Number , Oil and Gas Journal 54 82 93 94 1956 November 1956