Okay, so we get the old oil conversation going.
I change oil every 3,000 miles in my old 240D that probably isn't worth $2,500. I change oil every 3,300 miles in my 300E that probably isn't worth $10,000. If I had a new car of any description that I laid out my hard earned money for, there's no way I'd go anywhere near 10,000 miles between changes regardless of the oil I was using. If you're only going to do one piece of preventive maintenance, change oil hot, and change oil often.
'84 Euro 240D, 516K miles
'88 300E 5 Speed
Over 800,000 miles in