Thread: Proper Synthetic Oil Weight for 5.0 SL500
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Old 08-28-2006, 01:10 AM
mswann60 mswann60 is offline
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Join Date: Jul 2006
Posts: 2
C240
I have a 2002 C240, 85000 miles. The manual screams synthetic, but the API requirement is SJ.

I have been putting API grade SL 10-40w petroleum based oil since 30 K miles with no problems.

California 30-120 Degrees F ambient.
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