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2008 F350. 6.4, 165,000 miles. Been runnign the same tune since 25,000 miles....change oil every 10,000 without question. Oil plug has alwasy been clean. This tiem the magnetic plug had some shavings on it.....first time it ever happened. I will keep running her and will pull the plug again in 2,000 miles and re-check. Anyone have any ideas? I know the spectrum if possibilities is broad, but any in put would be appreciated. Thanks!
 

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Junior Member
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Describe the type of metal black, silver flakes, or aluminum alloy. If you have the old oil filter cut it apart and looking there as well.
Black, fine is not abnormal unless there is a lot of it, a bulb on the magnet and lots in the filter.
Silver hard thin flakes are cam or follower, problems.
Aluminum alloy is the piston.
 
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