Do and donts of petrol..

[Brett]

Without going into the chemistry of it, Octane (from the cane family) is a combustion compressant (SP?). I.e. the higher the octane rating, the harder it is to ignite.
As previously stated, incorrect or complete ignition of the fuel in the cylinders could allow the fuel to ignite from the outside of the cylinders inwards to the centre of the piston. WHen it all meets in the middle, it 'explodes' as opposed to a chamber filled with a higher octane fuel that combusts cleanly all at once.

I have a modified cage as well as the bike, and i have found that the cage runs best on 98, and the ZXR250c runs the same on 98 as it does on 96.
I have found (just two weekends ago) that using Mobil as a fuel i get considerably more mileage out of the cage (based on open road driving) than when using BP fuel.

I have also noticed that the bike runs better on NON BP fuels.

I can't believe that it cost me fricken $30 to fill the bike today...

[SPman]

GSXR 1000 - ran Gull 91 - ran fine.
The 750SP was partial to 98 at times though...