[guenter]

Originally Posted by rueter

i live in banff alberta canada...rocky mountains....drove the b from hear to vancouver then down to seattle wash......then back again......lovin the car.......car preformed really well climbing the mountain roads......fantastic on gas......i know it says min 91 octane, is this super important......almost $1.40L for supreme....thanks....this forum is really helpful.....

I don't think it's terribly important.... you got knock sensors in the engine and it will retard timing if need be..... but to avoid pinging (ie predetonation) just don't drive it pedal to the metal.... I fill with regular quite often. My 300E hasn 280k km on it without any problems so far... my B200 has 50k on it as well. But those mountains around Banff they sure must get in the way of the view