This is an article by the British Society of Chemists: It has always puzzled me as to why the German Luftwaffe during WWII kept on using 87 Octane aviation gasoline while the Americans and British used 100 Octane gasoline in their Spitfire Fighters and Americans used 130 Octane in our P-51 and other fighters.
Link to full report: TR-073-001_OctaneinGasoline.pdf
