This may be kind of a newb question, but I've been hearing differing opinions on this. A friend of mine said I SHOULD NOT run premium fuel in my bike, while another friend of mine says I SHOULD ONLY run premium in my bike. What do you guys run, and what do you think I should run? Bike is all stock.

 

I have an '06 as well; I always run 91 octane. I believe the owner's manual says to do this, but I don't have mine with me at work to check.

Edit: Turns out I have a bad memory, 86 octane + is the manual recommendation.

 

lol...there is a thread in the F4 forum right now on this...quite a variety of opinions at this point.

 

The manual tells me anything over 86 is fine. I run premium in my truck... which isn't a high performance engine. So I figure I should run it in my high-performance bike.

 

i run premium in everything from my bike to car to lawnmower to snowblower to atv.

if i run anything less then 93 in my atv it fouls out the plug everytime.

 

your bike is capable of burning 93 octane so why not use it? it will give you the best horse power and performance . i also have a 06 tribal

 

there are alot of different point of views on this, you can run anything over 86 like your manual says. you get no performance gains from running a higher octane fuel. so its really up to you.

 

excuse me? you get no gains from running higher octane? are you kidding me ? go google it man. im sorry but your wrong. now if you run to high of a octane you will lose hp cuz bike cant break it down. man you need to research before you pretend you know something

 

Actually, he's right. There are no performance gains.

 

the bikes dont have an automatic ignition advance do they? bc if they dont, anything over the 86 will not help at all, it would actually hurt it, but prolly not a very noticable amount

you can run whatever you want its your bike but its made to run on the 86 and would run best with it