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Old 07-13-2002, 11:28 AM
400E 400E is offline
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Join Date: Jun 2001
Location: Omaha, NE
Posts: 962
The viscosity recommendations have changed from when my owner's manual was printed to the most recent list of "approved flluids" from MB. That list can be obtained from MBUSA (1-800-FOR-MERC) for free or a very small charge.

I have read on the Ritter/Easley site that Mobil 1 5W-30 is no longer a factory approved oil -- not sure why. Mobil 1 15W-50, 0W-40, 10W-40, etc ARE approved.

I used to use Mobil 1 5W-30 but have switched to 15W-50 year round.
'93 400E
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