https://www.amsoil.com/dealer/...n.pdf

I know it is an old TSB, and for 2006 Nissan cars, but our engine is derived from this one.

Do you know if this is still the case? Is this engine prone to that.

I am at about 2/3 of my 7500 miles oil change interval and the oil level is below the Full mark now (about 3/4 high between the Low and High mark).I cannot say that I drive my car hard, I barely go over 2000 rpm and almost never above 2500rpm.