MOTOR GASOLINES, WINTER 1980-81

Analytical data for 546 samples of motor gasoline, were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, and chemical companies. The data were submitted to the Bartlesville Energy Technology Center for study, necessary calculations, and compilation under a cooperative agreement between the Bartlesville Energy Technology Center (BETC) and the American Petroleum Institute (API). The samples represent the products of 23 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R+M)/2 below 90.0, unleaded antiknock index (R+M)/2 90.0 and above, leaded antiknock index (R+M)/2 below 93.0 and leaded antiknock index (R+M)/2 93.0 and above grades of gasoline are presented in this report. The antiknock (octane) index (R+M)/2 averages of gasoline sold in this country were 87.6 unleaded below 90.0, 91.4 unleaded 90.0 and above, 89.1 leaded below 93.0, and 93.3 leaded 93.0 and above grades of gasoline.

• Corporate Authors:

  Department of Energy

  Bartlesville Energy Research Center
  Bartlesville, OK  United States  74003
• Authors:
  • Shelton, E M
• Publication Date: 1981-7

Media Info

• Features: Figures; Tables;
• Pagination: 64 p.

Subject/Index Terms

• TRT Terms: Antiknock compounds; Chemical analysis; Engine knock; Fuel elements; Gasoline; Laboratory tests; Octane number; Statistical analysis
• Old TRIS Terms: Octane rating
• Subject Areas: Data and Information Technology; Safety and Human Factors;

Filing Info

• Accession Number: 00349855
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: DOE/BETC/PPS-81/3, HS-032 331
• Files: HSL, USDOT
• Created Date: May 28 1982 12:00AM