Originally Posted by jlseagull
Not disagreeing, but I hear that the new German computers that are on the MB models, help eliminate the knocking/cleaning concerns...they read that you are using premium/intermediate/regular, and adjust the cars firing operation, so the type of gasoline/petrol used really is not that important.
I should clarify since it may seem like I am being a jerk in my other replies - I am not trying to convince you otherwise or tell you that you are wrong, if you do not personally notice any performance loss or hear any knocking, then run with it.
Joe