Just a note on octane ratings. In 1986 I bought a new Suzuki GSX-R750, it was beautiful. The owners manual said it needed gas of at least 92 octane rating. I tried lots of different brands and found that the Chevron brand (in SoCal) worked best. All the others I tried had the occasional "pinging" sound under hard acceleration in hot summer weather. Since then I've been running the Chevron brand in all my vehicles.
-- Sergio 1967 Sunbeam Alpine Series V 'AJNT 86' still working on it!