Octane refers to a sort of rating when talking about it in relation to gasoline. High octane rated gasoline can be compressed more tightly without spontaneously combusting.
There is no octane in gasoline... it is the equivalent of octane.
The molecular formula of octane is C8H18. It doesn't really have a "symbol."The "octane" in gasoline is actually "iso-octane" or 2,2,4-trimethylpentane. It has the same molecular formula, but the atoms are arranged differently than in n-octane.
There are many different grades of gasoline, each with a different octane rating. Early gasoline had very low octane in many cases, from the 1920s to the 1970s octane rating was improved by adding a highly poisonous chemical called tetraethyl lead and ranged from about 90 to 110 octane, most modern cars can run on 87 octane unleaded (now considered "regular" grade gasoline), "premium" grade gasoline is around 90 to 92 octane unleaded, airplane gasoline is typically 130 octane leaded.
Octane is a chemical in gasoline that causes it to burn well... copper won't do anything... octane is a natural gas... uh... what? no!
87 Octane
The grades gasoline are the different octane ratings, the cheapest gas has the least octane. The lower the octane in the gasoline, the faster it will burn. High performance cars need high octane fuel.
Fuel for gasoline engines which posesses a low octane rating using the R+M/2 method.
For a 1991 Lincoln Town Car : " regular " unleaded gasoline , 87 octane
93 octane
That grade of gasoline has too much octane.
Octane
Gasoline is a mixture of several hydrocarbons. The most predominant hydrocarbon is octane, or C8H18, which is why many gasolines have an octane rating.