On my 2013 3.5 the oil level was showing 1/2 level on the green indicator bar. I added 1/2 quart and the bar has not budged. Has anyone had a similar experience? I'm wondering if I should add another 1/2 quart. As an aside is the range between MAX and MIN a quart? I couldn't find this information in the manual or the forum.

__________________
2013 X5 3.5i M Sport
2004 M3 cabriolet SMG