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  #1  
Old 04-26-2005, 12:43 AM
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1992 300E Oil Viscosity/Consumption

Hello! I'm new to the forum, and I just acquired my first Mercedes; a 1992 300E with 93,000 miles on the clock. My questions are: What is the recommended oil viscosity for this engine? The previous owner has been using Mobil 1 synthetic 10w-30 weight. I have noted some oil consumption, perhaps a quart every 1,000 miles. The cylinder head was reworked with new valve stem seals at mileage 79,000. Also, on cold start-up there is some chain or valve train (?) rattle for a few seconds; should this be addressed? It does not occur on every cold start.

Otherwise, the car runs and drives very well.

Thanks for any advice.

Nick

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Old 04-26-2005, 01:47 AM
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Did you get the owner's packet with the car?

Duke
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Old 04-26-2005, 10:34 AM
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Quote:
Originally Posted by Duke2.6
Did you get the owner's packet with the car?

Duke
I received the owner's and service manual, but the manuals do not reference the proper oil viscosity to use.
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Old 04-26-2005, 11:40 AM
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Nick
My car is a 300TE from 1992. At 85'000 miles the head gasket and valve were done. However it always consumed about 1 quart in 3000 miles, running 0w-40 Mobil1. When doing oil changes I added the 6 liters as stated in the owner's manual.
Recently I switched to 15w-50 Mobil EP. Also I only added 6 quarts (instead of 6 liters) at the oil change. The dipstick indicates 2/3 between min and max. Oil consumption has stopped. I do not know which of the two changes caused the stop - my guess would be only adding 6 quarts did it.
Regards, Bruno
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  #5  
Old 04-26-2005, 07:21 PM
Jack
 
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I used 10-30 Mobil 1 since I rebuilt the head and new valve seal on my 91 300E. The car was using about 1 qt very 500 miles before the valve seal.

Jack
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  #6  
Old 04-27-2005, 02:24 AM
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Location: Sacramento, CA
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Quote:
Originally Posted by 92 300E
I received the owner's and service manual, but the manuals do not reference the proper oil viscosity to use.
There should be a viscosity chart in the back of the owner's manual that provides the approved viscosity for a given temperature range.
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  #7  
Old 04-27-2005, 12:21 PM
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Quote:
Originally Posted by anthonyb
There should be a viscosity chart in the back of the owner's manual that provides the approved viscosity for a given temperature range.
Voila! And here I thought I'd read the manual cover to cover. I missed that page, and you all must think

Thanks, Anthony; I found it.
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  #8  
Old 04-27-2005, 02:51 PM
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Mobil 1 synthetic 10w-30 weight is an excellent choice.
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94 E320 58000 Miles
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  #9  
Old 04-27-2005, 03:20 PM
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Mobil 1 Synthetic 15 W 50 change interval 7.5K for the whole life of the car with oil consumption 0 (zero).
Valve stems and head gasket done at 140K. Now I have 185k. Engine running perfect.

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New Addition to the family
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2004 E500 4MATIC Wagon 95k
1996 E300 Diesel 173k Sold
1993 300E 2.8 230k Sold
1994 E320 White Wagon 373K Sold
Still dreaming about ....500E


Radu Negru
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