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Octane rating

en.wikipedia.org/wiki/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

www.exxon.com/octane-rating

Octane rating is a measure of a fuel's ability to resist 'knock'. The octane requirement of an engine varies with compression ratio, geometrical and mechanical ...

Paying a Premium for High Octane Gasoline? | Consumer Information

www.consumer.ftc.gov/articles/0210-paying-premium-high-octane-gasoline

Octane ratings measure a gasoline's ability to resist engine knock ... Most gas stations offer three octane grades: regular ...

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 ...

What does octane mean? | HowStuffWorks

auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question90.htm

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 ...

Selecting the Right Octane Fuel - Fuel Economy

www.fueleconomy.gov/feg/octane.shtml

Octane rating is the measure of a fuel's ability to resist "knocking" or "pinging" during combustion, caused by the air/fuel mixture detonating prematurely in the ...

What is Octane number? definition and meaning

www.businessdictionary.com/definition/Octane-number.html

Definition of Octane number: Measure of the ignition quality of gas (gasoline or petrol). Higher this number, the less susceptible is the gas to 'knocking' ...

Regular or Premium? - Feature - Car and Driver

www.caranddriver.com/features/regular-or-premium

A gasoline recipe that resists knock the way a mixture of 87-percent isooctane and 13-percent n-heptane would is rated at 87. Racing fuels with octane ratings ...

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

www.economist.com/blogs/babbage/2012/09/octane-ratings

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 Does Octane Do In Gasoline? Octane Ratings

www.bellperformance.com/blog/bid/101182/What-Does-Octane-Do-In-Gasoline-Octane-Ratings

Jan 20, 2012 ... If you see a high octane rating for a given gasoline, what does that really tell you? That you'll get better mileage and more power? Or does it tell ...

Answers
octane number
NOUN
1.
(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 | Define octane rating at Dictionary.com
dictionary.reference.com/browse/octane rating
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