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• n  a measure of the antiknock properties of gasoline

• octane number

News & Articles

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• Heloise: High octane explination
  Dear Heloise: What exactly does the octane rating mean? I see it all the time at the gas station, and the higher the number, the more expensive the gas. Please explain. - J.B. in Wisconsin According to the Federal Trade Commission, www.ftc.
  Nov. 12, 2013 - Amarillo Globe-News
• Hints from Heloise: What are octane ratings and which do I need?
  Dear Heloise What exactly does the octane rating mean? I see it all the time at the gas station, and the higher the number, the more expensive the gas. Please explain. -- J.B. in Wisconsin
  Nov. 12, 2013 - Erie Times-News
• Octane helps with 'engine knock'
  Dear Heloise: What exactly does the octane rating mean? I see it all the time at the gas station, an ...
  Nov. 11, 2013 - Hutchinson News