Nope, I run 87 or 89, I believe Honda says to run standard 87 or higher. Probably a waste of money running anything over 89, these bikes are meant to run on 87, 93 will likely get you worse mileage and not help anything else.
I have been using premium without ethanol. Premium does costs me 72 cents more when I fill up. Which beats the hell out of filling up my 1 ton diesel. It has a 50 gal tank and gets 17 mpg when not pulling anything and babying it.