Thread: VISCOSITY issue
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Old 02-22-2003, 04:20 PM
400E 400E is offline
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Join Date: Jun 2001
Location: Omaha, NE
Posts: 962
If you call 1-800-FOR MERC they will mail you a dandy free brochure on recommended fluids and other service products.

Having said that, one thing for sure: no 5W30 or 10W30 oils are approved by MB.

Personally I use Mobil 1 15W50 year round. Despite the high-sounding lower number, it remains fluid down to very low temps. No trouble starting this winter despite below zero F temps.
'93 400E
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