I am the new owner of a 2010 S automatic with 90K miles on it. Checked the fluids on purchase (from a BMW dealer) and they all looked good. It surprised me to find clear trans. fluid! Not just clean, but clear! Is this Matic S or maybe BMW Trans. fluid? I won't bother flushing the trans. if it doesn't need it. I've just never seen CLEAR trans. fluid before!