Oil Analysis result questions. Share your opinion.

Don't see any reason for concern myself - fairly good looking sample. Fuel dilution is minimal - 86 PPM Iron is little concern.

I'd resample at 12,500 - 15,000 and continue.

Or change out and go on. Is your concern engine condition?

 

I would suggest to do ISB test. little overspraying injector can cause little bit more wear in cylinder.

 

What is an ISB test - and what indication does the sample give you to suggest that?

None of the wear metals indicate an issue, to me anyhow.

 

Here is my DD16, 450,000 kms (275,000 miles) same hours as yours. I haul grain, so lots of idling in line ups.
Three samples ago, all of a sudden my iron jumped, copper and aluminum too. In my case the clues were the potassium jumped as well. They use potassium chloride on the roads in the winter instead of sodium chloride as we have a lot of potash mines around here, they get the stuff cheap.
Freightliner did injectors cup seals and the overhead just before that sample. So I thought it was just junk from their work. Two samples back the numbers were still up. I later found a loose clamp on the intake boot on the turbo. After that, the last sample showed the numbers going back down.
You only show the wear metals, so @mhyn is probably on the right track. Over fueling can cause cyclinder wear, you are seeing the iron from the cylinder and aluminium from the piston.

 

@uncleal13 thank you for sharing your oil test result !

 

isb is idle speed balance test. it will show injectors performance. leaking, overspraying and underspraying injectors..

 

ISB TEST

 

Fair enough. I see the plan. Kinda handy - like a cylinder cut-out test but at idle?

I would assume this doesn't apply to old '95 12.7 like mine?