Fuel injector cleaners

Perfect example- put 87 in your tank for a long time and be prepared to hear a ticking noise. Then put a tank of high octane in it (91-93) and it goes away.

It burns off the garbage in low octane.

Wait, what? Are you saying 87 octane fuel is leaving deposits that "cause a noise" and higher octane "burns that off"?

If you are hearing a "ticking" (pinging) noise while running 87 but not with a higher octane, that's called pre-ignition. This is most evident under heavy load, such as fast acceleration or pulling a load. The higher the octane rating, the more resistant the fuel is to pre-ignition. Octane rating has nothing to do with fuel quality or cleanliness. Marketing labels of "regular" and "premium" are just that, marketing.
 
You actually take everything the EPA says at face value?

Perfect example- put 87 in your tank for a long time and be prepared to hear a ticking noise. Then put a tank of high octane in it (91-93) and it goes away.

It burns off the garbage in low octane.
You misunderstand the purpose of octane and what additional octane does if you actually believe that. The sole job of additional octane is to make gasoline harder to ignite, to resist pinging and knocking from premature ignition/detonation, when the engine has a higher than average compression level.

In other words more octane beyond 87 is only added to help the gas resist higher levels of compression so it doesn't self-detonate before it's supposed to be ignited by the spark.