On the fuel tank of my new RR there is a warning that says not to use fuel below 95 octane. I have 95 and 97 to choice , wich one do you think is better.
Do you think it worth the 97 or is useless ?
Thanks in advance

 

The highest I have here in Iowa is 92 and I run that with no problems at all...What is the price difference between the two?

 

we get 87, 89 & 91 here so i've been using 89 and my bike runs like a champ

 

My manual says 91 or higher. I get whatever meets that recommendation, as long as it is at least 91.

I'm not cheap, but I don't pay for anything higher since I don't think it would be beneficial.