Yup. I researched it. Technically the bike will run without knock all the way down to 81 octane, but 87 is what they put in the service manual. It doesn't make any sense to use more octane than I need. Slower burn without knock means better gas efficiency, cooler engine, ect... Creates a more isentropic reaction compared to a fuel that blows its whole load right away. More energy is converted into displacement than heat energy that way. Thermodynamics.
Last edited by ironmannFB3; 08-28-2006 at 04:13 AM.