Noob question: Stg1 F40D.bin
 

Recently purchased the OFT and tuned my car to stage 1. I am going to fill up my gas soon, but I do not know which octane to put bc it did not say which octane to put while I flashed to stage 1. (Sorry for the noob question) If any one can help much appreciated. & the tune says I am currently on stg1 F40D.bin. It did not have any octane levels for any of the tunes that were given.

minimum 91. i think all the preloaded tunes on the device are 91 but i could be wrong. its been a few years since receiving mine

Thank you^^