[dubojr1]

Originally Posted by rwheelz

Doesn't higher octane gas burn cleaner? Or is it that it burns hotter? Either way, I will be putting the highest octane at the pump in everything I own, short of my craftsman mower.

Not that I am saying you guys are wrong. Maybe I am wasting my money putting 91+ in the 250, but we're talking about a difference of less than $1 per tank.

Yep your wrong... 91+ will not ignite as easily so a higher compression engine can come to full compression before pre-igniting preventing spark knock. I'm sure it won't hurt the ninja but it is wasting as you say "$1 per tank" X's each fillup X's all the fillups in a year X's all the years you own it.