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Old 08-23-2011, 06:43 AM   #4
jmatta
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Join Date: Nov 2007
Location: Chicago suburbs
Posts: 1,675
If you're using Mobil 1 0W40, change to a different brand...5 or 10W40. Do a search; lots of discussions on the topic. I run Castrol Syntec 10W40 and my engine sounds very nice.
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