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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/en/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 ...

What does octane mean? | HowStuffWorks

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

The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than ...

Selecting the Right Octane Fuel - FuelEconomy.gov

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 ...

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 ...

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 ...

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' ...

What is octane? - Fuel Freedom Foundation

www.fuelfreedom.org/what-is-octane/

Mar 30, 2016 ... Or, in layman's terms, the higher the octane rating, the less likely the fuel is going to pre-ignite (read: explode unexpectedly) at higher pressures ...

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 ...

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 ...

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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