What is the best brand of full synthetic oil to use on a 2009 BMW Z4 3.0i, 5W30
I'm looking at a Z4 and found your question interesting. For an answer see: http://www.quirkyuncle.com/2013/09/12/diy-choosing- the-correct-motor-oil-for-your-bmw/. The article is too long to repeat or abstract here.
Search BMW Z4 Questions
BMW Z4 Experts