The CB1100 Community Forum

The owners manual of my 2011 cb says "91 ron or higher"

So my understanding is that you dont get any benefit from a higher octane fuel...

I refer to this guy, who is great....

https://www.youtube.com/watch?v=WYlk9C1o0nk

(skip to 15.00 if your time preciouse...but i recommend the whole video its informative and hilarious)

Can of worms officially opened.....

From my experience, higher ron engine run cooler and give less vibration. Power and fuel consumption wise no different.

Why use a higher octane rating than Honda recommends?

Well, in Malaysia, we only have 3 rating available, Ron 95, Ron97 and Ron100. Tried 3 of them, Ron97 and Ron100 not much different other than the price. But between Ron95 and Ron97 theres a significant difference in vibration and and engine heat. Especially on high mileage engine where vibration is significant.

In Poland we have Ron 95 and Ron98. No difference. I am using cheaper Ron95 and it is OK.