Up here in my parallel universe almost all hydrocarbon blends according to BS whatever at 95RON have the same calorific value and knock capacity.
And the stuff that I buy at the BP/SHELL/EXXON/TOTAL galactic gas station, regardless of the company logo, comes from the nearest galactic refinery belonging to any of the above or their associates and gets rebranded when it is pumped into the gas station storage tanks. This is because we are stupid and they know how much it costs to ship that stuff around the galaxy by tanker. So some special BP or Shell brew at 97RON plus bells and whistles probably has some stuff added by whoever makes the base stock. If you like the taste, buy it.
If some odd stuff with free-ish oxygen molecules are added we could get a bit(even a lot with nitrous)more power if the compression ratio/fuel mixture etc automatically adjusted. Strangely those Bavarians only allowed for knock detection and ignition retard-and that has the opposite effect when lower RON gas is used. The poor CPU has no idea about the high quality stuff as it does not induce knock(or more correctly, less tendency to knock known to the CPU) and the baseline is set for 95 RON. This reflects their thinking being limited to your puny galaxy, but then a kraut is a kraut.
The idea that we, or a bunch of engineeringly illiterate journos from Ride, can really measure 1.9% and 5.8% improvement in bike performance/economy does not merit punching keys. Have they been at that good stuff on Signus minor 1083 again?
The dynos and other instruments they use have an inherent overall innacuracy greater than the deviation they report, or is it just the red shift.
And be prepared when next year we launch in your galaxy the Super Duper SAE 0.001 to 0.005 weight multigrade 101% synthetic engine oil from Galactic Fool Oil Corporation which reduces oil consumption to minus one litre per 1000 kilometres and rebuilds the friggin motor overnight in your very own garage at major service intervals. Of course for the true afficionados we will also be offering the premium 110% stuff which rebalances the throttles at 0.001 millisecond intervals on the fly as you ride, and adjusts the seat cushion to your delicate requirements at every rest stop. And all this for two grand a litre 101% and only three grand for 110%. Now this is THE aftermarket product of the new millenium.
Incidentally, is IOW a class A or class B planet in your galaxy?