[Efthreeoh]

As SOCOM states below, you used the wrong weight oil for the N52 and it should be changed right away.

Changed my original reply to:

However if you had used the proper weight oil 5W-30, American Syntec is good oil, but doesn't carry BMW's LL01 spec rating, so one should not take it to the average 15,000 OCI the Conditioned Based Service (CBS) system will want the oil changed. Before BMW started selling BMW-branded Castrol, I used American Castrol Syntec for years in my wife's Z3 (currently with 160,000 miles on it), which routinely went 9,500 miles between changes and have not had an issue.

Next time be sober and just buy the oil change kit from Tischer on line. It's easy, gets shipped to your house and the cost of shipping is about the same as driving to the store to buy oil anyway.