octane rating

octane rating
   see octane number

Dictionary of units of measurement. 2015.

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  • Octane rating — or octane number is a standard measure of the anti knock properties (i.e. the performance) of a motor or aviation fuel. The higher the octane number, the more compression the fuel can withstand before detonating. In broad terms, fuels with a… …   Wikipedia

  • Octane rating — is a relative quantity specification of the engine fuel antiknock rating to detonation of engine fuels used in gasoline internal combustion engines. Engine fuel can be compared to an isooctane mix, the conditional octane rating of which is 100,… …   Glossary of Oil and Gas

  • octane rating — noun a measure of the antiknock properties of gasoline • Syn: ↑octane number • Hypernyms: ↑measure, ↑quantity, ↑amount * * * noun see octane number * * * octane number or …   Useful english dictionary

  • Octane rating —   A number used to indicate gasoline s antiknock performance in motor vehicle engines. The two recognized laboratory engine test methods for determining the antiknock rating, i.e., octane rating, of gasolines are the Research method and the Motor …   Energy terms

  • octane rating/number — An indicator of a fuel’s ability to burn at a controlled rate at high temperatures and pressures without causing a detonation (very rapid burning or exploding). This number is expressed as a percentage by volume of iso octane in a mixture with a… …   Aviation dictionary

  • octane rating — noun see octane number …   New Collegiate Dictionary

  • octane rating — See octagon number …   Dictionary of automotive terms

  • Octane (disambiguation) — Octane may refer to: Octane, an alkane with the chemical formula C8H18 Octane rating, a gasoline rating system Octane (Transformers), a Decepticon in the Transformers toyline SGI Octane, an SGI computer Octane (band), a rock band from… …   Wikipedia

  • octane — (n.) hydrocarbon of the methane series, 1872, coined from octo (see OCTA (Cf. octa )) + ANE (Cf. ane); so called because it has eight carbon atoms. A fuel s octane rating, in reference to its anti knocking quality, is attested from 1932 …   Etymology dictionary

  • octane number — ☆ octane number or octane rating n. a number representing the antiknock properties of a gasoline, fuel mixture, etc., determined by the percentage of isooctane that must be mixed with normal heptane to produce the knocking quality of the fuel… …   English World dictionary

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