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first UOA at 44000 miles

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Old Dec 6, 2009 | 07:23 PM
  #1  
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Default first UOA at 44000 miles

This is the first used oil analysis I've had done. For the first 20,000 miles I ran a mix of Mobil 1, Pennzoil Platinum, Ford Motorcraft, and Castrol Syntec, all in 5W20. Since then I've settled on Mobil 1 0W20 Advanced Fuel Economy. Whether it does or not, I don't know, but it seems to quiet down that couple of seconds of lifter tick I hear in the morning.

What do you guys think? Is the high copper something I should be worried about?
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Old Dec 6, 2009 | 09:08 PM
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For some reason copper seems to be high on these engines. I have run UOAs on my Jeep since new. Copper has been high but slowly going down.
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Old Dec 8, 2009 | 05:47 AM
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I think I would be more worried about the Molybdenum being high, as that is the covering that is on the bearings. While it is not excessive, it is higher than the "average" listed. Note that I am not an oil analysist expert either.
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Old Dec 8, 2009 | 06:33 AM
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Moly is a friction modifier used in a lot of fuel economy oils. This oil is marketed as a fuel economy oil so that would probably account for the high moly reading.
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Old Dec 9, 2009 | 06:03 AM
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That makes sense, thanks for the explination. I guess I have been out of the industry too long.
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