1983 CRC (Coordinating Research Council, Inc.) Octane Number Requirement Survey.

Abstract

In the 37th annual statistical survey of current model vehicles conducted by the Coordinating Research Council, Inc., test data were obtained on 383 1983 model vehicles, including 300 US vehicles and 83 imported vehicles. Fifteen laboratories participated in this Survey. Maximum octane number requirements were determined by testing under part-throttle conditions, as well as at maximum-throttle. Requirements are expressed as the Research octane number, Motor octane number, and (R+M)/2 octane number of the reference fuel which produced the least audible knock due to either spark or surface ignition, whichever was limiting. Estimated octane number requirements for the US vehicles are weighted in proportion to the 1983 vehicle model production figures and, for the imported models, in proportion to import sales volume in the United States.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1983
Accession Number
ADA145816

Tags

DTIC Thesaurus Topics

  • Automatic Transmissions
  • Cartesian Coordinates
  • Confidence Limits
  • Detectors
  • Fuel Injection
  • Fuel Systems
  • Ignition
  • Insensitive Explosives
  • Knocking
  • Metal Matrix Composites
  • Passengers
  • Plastic Explosives
  • Pressure Regulators
  • Production
  • Surveys
  • Test Vehicles
  • United States

Readers

  • Petroleum Engineering
  • Statistical inference.