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