What do you feed your M3 in Canada? 91 or 94 octane?
I'm curious what other fellow board members feed their M3's in Canada? Is there any noticeable difference between 91 & 94 octane? I believe BMW Canada recommends 91 so is there any benefit to go higher?
Also, if I were to switch to 94 octane is it recommended that I don't go back to 91?
Do you guys always tend to get the same gas brand, any particular brands to absolutely stay away from?