Which do you think is better and why?
Makes more Power or better detonation resistance?
11.5-1 114ci M8
Ethanol is harder on rubbers etc . But octane rules . Are you pinging at 11.5 on 93 ?
No just wondered what people thought was best and why. I have access to both locally.
In my area we have 86 for regular and 91 for premium
I have tuned both my bikes to run on 86 one is set at 11.3 and the other is set at 10.5
I run 86 because it is available at every hole in the wall station where I have had trouble finding 91 in the past
I'd rather tune for the 93. I do wonder if the fuel is rated at 93 and then mixed or is it 93 calculated with mix?
I'm thinking that octane would have to be figured in after ethanol is added. Just found a piece that explains some of it. I too would want to run the higher octane blend. ethanol and octane explained (https://mnbiofuels.org/media-mba/blog/item/1511-octane-and-ethanol-for-beginners#:~:text=When%20you%20mix%2010%20percent%20113%20octane%20ethanol,octane%20and%20E85%20%2885%25%20ethanol%29%20is%20108%20octane.)