Mike,

Do yourself a favor and run a real Synthetic like Redline or Amzoil in your Mercedes (for sure in your long service interval components like rear axle and trans). Castrol Syntech and Mobil 1 are both really good oils, but not truely synthetic as far as I'm concerned. Its been quite a hot topic on the Forum.

More info about synthetic than you need:
http://www.peachparts.com/shopforum/showthread.php?t=30429
and
http://www.peachparts.com/shopforum/showthread.php?threadid=31001&perpage=15&pagenumber=1

__________________
Thanks,
Dave

1998 BMW 540i Sport
1995 E320
1992 400E
1989 BMW M3
1979 Triumph TR7 (1st car)
1986 BMW 735i (Sold)
1980 BMW 320i (Sold)