octane question

[kai]

I have a 2010 summit xp. BRP recommends 91 octane. In the town I live in, I can get 91, 92 or 94 octane. My question is, Is there any benefits to paying more for the 94 octane like better performance? All three are ethanol free.
thanks

 

[Mafesto]

No.

No benefit at all.

Actually, you would get less power from the higher octane, but you would never tell it w/o a dyno.

Higher octane = slower burn (more resistance to knocking)

 

[jcrjet]

You want to use the lowest octane possible that will run without detonation. That will get you the best HP. Also, octane requirement will go down with increase in altitude.

 

[TurboMatt]

Sorry or hijack,but here's another octane related question:
What would be better for my turbo sled: 91octane ethanol free OR 93octane 10% ethanol?

 

[Fireman35]

How much bost u running. lower boost you could run 93 w/ethanol. about 6-8 at sea level.