Originally Posted by WRXLTD
I'd like to see the dealership or Subaru even try to deny a warranty on a broken ringland or spun bearing when using 5w30 Mobil 1 & a Subaru oil filter.
I bet they would pull the "Abuse" card before that would happen.
1) the oil used meets the standards as outlined in the owner's manual
2) you changed it according to the recommended intervals from Subaru
3) can provide receipts for every service performed
then you'll be fine. If you don't, you run the risk of getting denied.