Premium Octane?

[Big TP]

I thought it was understood that higher octane gas is not better gas than lower octane. You should use the one specified for your engine or go up if you suffer from ping or knock.

Well I have not had any issues with the 87 octane, it just so happened that the when I accidentally filled up last time with 92, it "seemed" more responsive.

Placebo??

[Kokomo Kevin]

I think that given Honda's tight specs in engine mapping, what we are seeing is more to do with fuel quality. I do think there are some differences, obviously in the blends, but we all need to consider that there is most likely vast differences between storage at stations. I believe moisture content is probably causing some variance. I usually fill up at HIGH volume stations in my hometown. I have in the past gotten what I think is bad gasoline. In those cases I did notice a difference in the way my vehicles ran. Good discussion! Anyone have any other bad fuel stories?

[53driver]

My 2014 Owner's Manual, page 136, states "86 or above"

I'm finding it fascinating that there are other Owner's Manuals stating differently.
Here is a snap from my manual - not something downloaded off the 'net.

If your Manual states different than mine, please post a pic and the year of your bike. This could be very interesting.
Cheers,
Steve

I have never seen any such octane instructions in any Honda F6B manuals..."Show me the money" so to speak....Regards and ride safe

They are there, my friend!