The octane number is a measure of performance of a fuel. It is measured relative to pure isooctane which is given an arbitrary value of 100. It is possible for fuels to have an octane number higher than 100.
The higher the octane number the more compression it takes for the fuel to detonate. Higher octane fuel is used usually in high performance vehicles where the engines have higher compression ratios.
If the octane number of a fuel isn't high enough it can lead to engine knocking this is where the fuel detonates before the fuel is at its maximum compressive state in the engine, this can cause damage and lower performance.
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 higher octane rating are used in high-compression engines that generally have higher performance. Octane rating does not relate to the energy content of the fuel (see heating value). It is only a measure of the fuel's tendency to burn in a controlled manner, rather than exploding in an uncontrolled manner. Where the octane number is raised by blending in ethanol, energy content per volume is reduced.
octane number
see link about octane number
Octane has not special application excepting the so-called octane number.
93 octane works best.
Octane rating is the resistance to burning. For example (not real number) a gas with an octane rating of 50 will burn at 100 degrees Fahrenheit whereas a gas with an octane rating of 100 will burn at 200 degrees Fahrenheit. Higher the octane number the harder it is to burn.
RON= research octane number
100 octane. This is why aviation fuel (avgas) is typically called 100LL, which stands for 100 octane, low lead.
Research Octane Number 95
nkn
Heptane has the number 0, and the number assigned to isooctane is 100. These two materials are used to grade the octane rating of petroleum fuels.This is called bracketing method.
Octane has a higher boiling point than pentane because octane has a larger number of carbon atoms than propane
Unleaded premium with an octane rating of at least 91 AKI (Anti-Knock Index number) (research octane number 96).