I run 78 octane and pigeon blood, it balances out.....

I use 98, mite use 95 though, advantages vs disadvantages anyone????

i haven't even gotten a chance to fill up yet..haven't even filled it for the first time :)...the cars been at the dealership since tuesday to get ipod adapter installed...their system keeps crashing that's what they tell me...eeh' i can't complain they gave me a 09 X5 brand new loaner...so i'm having the time of the life with that...but i sure miss 550