It came back less than perfect, raising some concern:



Looks like I have some type of issue going on? What could cause this level of wear metals in the oil? I have a clattery lifter or two that quiet down when the engine gets fully hot (and are getting better when cold as I drive more miles with the synthetic oil in there) but otherwise I'd think that I have a very healthy engine. I consistently get 28-30mpg and seem to have a lot of power.

I've never had any running problems other than the one issue with the engine stumbling under load with a puff of white smoke on a grade on I-5 in southern Oregon which was documented here:
http://www.peachparts.com/shopforum/diesel-discussion/367310-300d-road-trip-found-some-bad-diesel-along-way.html

Any ideas?

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Garage:

2017 Chevy Colorado Diesel (nanny state emissions)
2005 Volvo S40 T5 AWD, 77k
1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 156k - 28.7 mpg
1996 Tracker 4x4, 2 door, 16v, 3 sp auto. 113k - 28.6 mpg

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