This "octane" is a flame retardant . Google it and read about the history , development , etc. There is more to the power in av-gas than octane . Octane is to stop pre-ignition in the combustion process . The farther "up" in the air , the leaner , the oxygen . So , this is where the octane comes into play . It stops the preignition from leaner air/fuel mixture .
You can't have problems in the air