Winter 5w50 synthetic.
That's for an E30.. I see now that you have a newer car, so... not sure, I'm sure thinner oils are ok for it though. If $ isn't a factor I favor synthetic, if only for it's extreme upper and lower temperature characteristics.
Performance one step at a time.
Last edited by InfiniteDice; 07-30-2009 at 03:44 PM.