Originally Posted by Venice Motor Bikes
I use 91 in my bikes... I know that the extra octane does nothing in these low compression engines, but I've also used the low octane stuff & I swear that my bikes run a little better on the good stuff!! (Maybe it's because of the other chemicals that are in the good stuff?)
another thing is watered down fuel, companies in most states are allowed to sell gasoline with up to 15% water content before it becomes a problem, i'm willing to bet that their higher end fuels will have more actual fuel and less water content, which i think would help a bit more.