M1 5W50 FS X2 quite often goes on sale in my area. Recently (Jan to Feb '21) the local NAPA Auto-Parts was selling M1 for $5.95 per quart! I now have BE bearings and was wondering if the
M1 5W50 may now be out of the question due to the extra rod bearing clearance. It's worth mentioning that the E9X M3 Owners Manual does allow for the use of oil viscosities other than
10W60 but that's with OEM bearing clearances. Thoughts?
PS:
Sorry to thread jack a 10W60 thread.
