Thanks for allowing us to read between the lines.
I believe that we can extend our oil change intervals just a little with the newer engines. You make a good point, the oils haven't changed alot lately. But the engines are running a little cleaner. Not to worry though, you won't find my precious new car, or even my old ragged out ones, going anywhere near as far as MB is telling me. Oil and filters are CHEAP, even Mobil One and dealer purchased filters, compared to the cost of a new car, or even a new engine are CHEAP.
Change oil hot and change oil often,
'01 C Class, Six Speed
'84 Euro 240D, manual, 533K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in