Well just wondering, Since our bikes take 87 octane.
Can we mess with the ignition advance and use 91 octane?
Like with a PCIIIR?

 

I don't know about you but @ $3.05 a gal for the cheap gas and $3.25gal preimun My bike runs just fine on 87 octane
If its not broke don't fix it

 

you can get a power Commander IIIr that will allow you to adjust the ignition advance or an add-on if you have a PCIII USB
as milko said, its already expensive enough to use the cheap gas and the only reason I would do this to my F4i would be to use race gas, no way I would do it just to use more expensive pump gas. I don't know that, even with the ignition advance, using 91 would improve performance noticeably

 

well not only for performance but you could technically run a leaner mixture and such for more milage for daily. Then on the weekends DL the fun maps.

Just wondering if any of you have done it.