Hey........aren't we all here to help each other? KeychainDan made a good point about octane rating in relation to Chemical Engineering, which we can all apply. But, I do not understand what Capt_B's point is! No need to try to rub it in! The point was made and you get no credit for jumping on KeychainDan's bandwagon! Since you didn't define OCTANE, I will!
Merriam-Webster defines octane as:
Etymology:International Scientific Vocabulary
1 : any of several isomeric liquid alkanes C8H18
Merriam-Webster defines octane number as:
: a number that is used to measure the antiknock properties of a liquid motor fuel (as gasoline) with a higher number indicating a smaller likelihood of knocking —called also octane rating — compare cetane number.
Merriam-Webster defines cetane number as:
: a measure of the ignition value of a diesel fuel that represents the percentage by volume of cetane in a mixture of liquid methylnaphthalene that gives the same ignition lag as the oil being tested —called also cetane rating — compare octane number.
Now, hopefully we all learned something! I know I did.........