[U.K. R33 GTS-t]

Does the E.C.U. in the R-33 GTS-t automatically adjust to the octane of the fuel you are using?

If so, does it do so instantly, or will it take some time, and / or need an E.C.U. reset?

Also, what power gain, if any, could be got from running on 99 octane (using an octane booster) as opposed to 97 octane?

Hope one of you can help! Thank you!

Philip.