[eppisgood]

At 45k miles I had the routine maintenance with oil change done at the dealer, I'm sure they used "BMW High Performance Synthetic Oil". I'm at 51k miles now and got the oilcan icon with the squiggly mark underneath it, did a oil level check and got the "+1 Qts" indicator on my oil level display. Did some reading and Mobil 1 0W-40 appears to meet BMW's LL01 requirement, and it's readily available down the street at O'Reilly Auto Parts for <$9/quart. Question is, is it OK if I use Mobile 1 0W-40 to fill it back up & should I use the entire quart? Thank you.