262,000 as it sits now. I have run Mobile 1 0W-40 for the last few years with no issues. Engine still runs just as good as the day I got it. I didn't know you were a petroleum engineer. What makes you qualified to say "all" oil isn't suitable after a certain Milage.?
How much do you think replacing the bearings is going to cost?
Ive seen an early 90's E36 spitting 600,000 miles still using the original block and head that had no issues or knocks. This 600,000 mile E36 also never needed an engine rebuild. Running an oil like that hides a problem apperantly. Your engine isn't supposed to rattle so your letting your oil hide a problem.
Why did you even post here if you didn't want advice?