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Old 08-18-2013, 04:21 PM
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JamesDean JamesDean is offline
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,038
Quote:
Originally Posted by ohiomike View Post
I have a 1991 300SE and I changed the differential fluid to a synthetic grade that Walmart sold as gear oil. Drives OK in city but as soon as I drove it high speeds for 40 miles there was a howling so bad I thought the rear wheel bearing was going out. This happened every time I drove it on the interstate.

So I went to the dealer and got their last liter of special Hypoid gear oil and changed it. What do you know, no more mowling and its spec. So in some cases it does pay to use MB Fluids.
Hmm I wonder if this would help my 190E's howling out...hm
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