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octane number
(of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
Source: Dictionary.com

Octane rating


Octane rating or octane number is a standard measure of the performance of an engine or aviation fuel. The higher the octane number, the more compression ...

Octane Rating - Understanding Fuel Octane | Exxon and Mobil


Different vehicles need a different level of octane. Learn more about octane ratings and why some engines need high octane gas to run properly.

Paying a Premium for High Octane Gasoline? | Consumer Information


What are octane ratings? Octane ratings measure a gasoline's ability to resist engine knock — a rattling or pinging sound ...

Gasoline is most often produced by the fractional distillation of petroleum , also known as crude oil (it is also produced from coal and oil shale). In cracking, high molecular weight fractions and catalysts are heated to the point where the carbon-carbon bonds break. ... More »
By Anne Marie Helmenstine, Ph.D., About.com Guide

What does octane mean? | HowStuffWorks


During World War I, it was discovered that adding a chemical called tetraethyl lead (TEL) to gasoline significantly improved the gasoline's octane rating. See car ...

www.ask.com/youtube?q=Octane Rating&v=cfhTTuxF6Mk
Sep 30, 2011 ... What's the difference between premium and regular fuel? What does that octane rating number represent? This video explains why cars with ...

Octane ratings: Difference Engine: Who needs premium? | The ...


Sep 17, 2012 ... EVEN at the cheapest petrol station in your correspondent's neighborhood, filling up the family kidmobile with premium (91 octane) fuel now ...

What is Octane number? definition and meaning


Definition of Octane number: Measure of the ignition quality of gas (gasoline or petrol). Higher this number, the less ... Also called Octane rating. See also cetane  ...

Mythbusting Octane, The Truth About Gasoline - NICO Club


Apr 19, 2010 ... The next time someone tries to pass these gasoline-related myths off on you, you can try explaining to them how octane ratings really work.

octane rating | Define octane rating at Dictionary.com
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Popular Q&A
Q: What is octane rating of petrols?
A: Octane is an oil added to gasoline (petrol) to raise the ignition temperature of the gasoline. This is necessary in gasoline engines with high compression as th... Read More »
Source: wiki.answers.com
Q: What is the octane rating of petrol?
A: Octane rating is a measure of how resistant the fuel is to causing 'knocking' or pre-detonation in petrol(gasoline) engines. It is measured relative to a hydroc... Read More »
Source: wiki.answers.com
Q: What is an octane rating.
A: Octane is a rating given to fuels, excluding diesel fuel, that determines their resistance to pre-donation or pinging. They higher the octane rating the more re... Read More »
Source: www.answers.com
Q: What is the octane rating of methanol.
A: The octane rating of methanol depends on the octane rating scale measurement type used, n-Heptane is the zero point of the octane rating scale then the octane r... Read More »
Source: www.answers.com
Q: What is the octane rating of propane?
A: Propane has three carbon atoms chained together. ! Read More »
Source: www.chacha.com