MOTOR GASOLINES, SUMMER 1983

The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. The analytical data for 1,583 samples of motor gasoline, were submitted to the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma for study, necessary calculations, and compilation under a cooperative agreement between the National Institute for Petroleum and Energy Research (NIPER) and the American Petroleum Institute (API). They represent the products of 48 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, and leaded antiknock index (R+M)/2 below 93.0 grades of gasoline are presented in this report. The antiknock (octane) index (R+M)/2 averages of gasoline sold in this country were 87.5 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 89.0 for leaded below 93.0 grades of gasoline.

• Corporate Authors:

  National Institute for Petroleum & Energy Research

  P.O. Box 2128
  Bartlesville, OK  United States  74005
• Authors:
  • Shelton, E M
• Publication Date: 1984-2

Media Info

• Features: Figures; Tables;
• Pagination: 61 p.

Subject/Index Terms

• TRT Terms: Antiknock compounds; Charts; Engine knock; Gasoline; Laboratory tests; Leaded gasoline; Octane number; Sampling; Unleaded gasoline
• Old TRIS Terms: Octane rating; Test results
• Subject Areas: Highways; Vehicles and Equipment; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00391297
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: NIPER-133 PPS 84/1, HS-037 058
• Contract Numbers: DE FC01 83 FE 60149
• Files: HSL, TRIS, USDOT
• Created Date: Dec 30 1984 12:00AM