I'm kinder cornfused ... by this thread.

I couldn't use Mobil 1 in my Powerstroke Diesel because it didn't meet Navistar's anti-scuffing spec. This protects the piston rings and cylinder walls for such long-stroke engines. I had to use Delvac, Delo, or Amsoil.

Don't our Benz diesels require a similar anti-scuffing specification? If I remember right it's called CH-4.

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Thx/Reno
An American in France
88 300TD 5spd Sportline (lowered factory susp) - totalled by a flying deer
89 Range Rover V8 - the 4wd beast
02 Toyota minivan
05 Peugeot Partner 4x4 Dangel
88 International Harvestor 633SA
--Gone but not forgotten:
1970 250/8 C (sold to buy 450 SLC)
1972 450 SLC (sold after battling wiring harness problems too long)
1971 300 SEL 6.3 (sold after destroying two *very* expensive rear LS diffs)
1986 560 SEL (now my little brother's pride and joy)