Just don't buy the cheapest pump fuel. Go for the premium stuff, your bike deserves it.
The problem is you cannot tell quality by price. On specific race fuels there is rigorous testing and you are assured a quality fuel each time you buy, At some race tracks you HAVE to use the fuel the track supplies to keep it fair and consistent for everyone.
(No special elixirs your cousin the college chemistry major cooked up)
Race fuels tend to have a unique odor as well, You show up on your recently completed restoration belching out those fumes at a vintage club Sunday ride some eyebrows will be raised.
(Just like napalm in the morning, I love the smell of race fuel out of a performance machine, Wife hates it, gags, A day at the track is a GOOD day!)
Here in the US, fuel standards are wildly different based on which state or city. At one time it was considered an important consumer issue, Just like a Bakers chair in Germany, And rigorous stds and testing that you got a certain quality and the QUANTITY pumped was right. Just like merchants scales in a store required a certificate/license. I have a friend who reports after attending the LSR races in Utah he stopped at a shady looking station in the middle of nowhere and they charged him for 14 gallons in his car, and he knew he only had a 12 gallon tank. (Complaining looked like a bad idea, picture any horror movie of crime drama). But many places have reigned in testing and stds due to budget cuts. I used to carry around a test kit for the alcohol (Simple graduated cylinder) as I had some real problems with fuels in a few of my hotrods. The problem with a extreme camshaft (Duration mostly but lift as well) is that the more extreme the camshaft the more problems with fuel. Mrs Doubtfires soccer mom minivan will purr along without complaint on crappy fuel, But a big valve motor, high compression and a lumpy cam will be immediately effected by poor fuel.
In arguments with station owners over a bad tank of fuel they point to my smoking, sputtering car and say
"You just need a tune up!" (Man, its hard not to hit them!). Not to mention the incentive for fraud. Alcohol or water is cheap compared to a liter/gallon of fuel and a station that pumps thousands of gallons per day is a nice profit to dilute further.
Now on some of the local club rides, there has been some members who add a dash of castor oil, type R or other fragrant stuff. On a tiddler ride (Limited to 250cc or smaller-was 350cc but they changed it because of me) I have followed one fellow who doses his fuel, fragrant from a distance but follow too close and nauseating. Others have done this as well. But I did this once and plan to again,,
Try some of this!!!!!!!
See:
https://www.summitracing.com/search/part-type/fuel-system-additives/fuel-system-additive-type/fragranceLets see,,,,,,theres "Groovy Grape!",,"Rippin Root beer", "Cherry Bomb" or many others. Makes people wonder what you are up to.
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" And forget about adding tin or any other magic snake oil that is going to "save your engine, or increase mileage "
But but but.......... what about my magic magnets that align the molecules and I get 5 mpg improvement?
Or my secret carb the govt doesnt want us to know about that gets 200 mpg?