[justinwilliamskx]

higher octain isnt nesicarly better you actually want to run the lowest octain you can the only reason to go to higher octain is if you increased the compression running 87 will be fine and cheper but like in the case of your street bike it is good to run a higher octain gas becuase the boost from the turbo

 

[justinwilliamskx]

too low of octain and too high of compression means detonation