When I bought my 2 the service guy told me not to worry about the oil till my first service at 5000. I got my service done about a month ago now and it feels and drives like it did when I drove it off the floor with 19 miles on it.
FWIW: I just picked up Castrol Edge 0-20wt in a 5 qt package deal with a Bosch Long Distance filter at Advance Auto.
John
Always use Royal Purple with any car, very little friction; extremely durable oil.