0mercy

I'm going to pick up this monster next week after the R1 package has been installed. I want to know what the highest octane fuel I can run on this pkg. I also want to know what HP differences I'll see going from 93 octane to 95+ octane. I want power but I want it done safely because this will probably be my last luxury sadan for a while. Just to put things in perspective the R1 package is 696 AWDHP to the crank and 800+ tq which is roughly 600hp to the wheels. What will I see with the higher octane boost and can I even run it for that matter???? Help your boy out because I'm lost in the sauce.