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Originally Posted by danez_yoda I would suspect something with the timing chain job is not right and you are still making metal from that. That is where you first saw metal so you know it can produce similar metal. It is really weird that it does not go into the fuel pump and get caught in the...

Originally Posted by Mad_Hatter Aren't rings usually layered in construction with a steel backing? (aluminum over steel for example) Could be something in the valve train... Crankshaft rings to liner timing chain No oil pump sounds, right? Curious, how many miles on the oil? Gonna be...

Originally Posted by ammolab Metal is iron.. camshafts? My suspicion too, that or from the oil pump or crankshaft thurst bearings. But id think if camshaft id get lifter noise

Originally Posted by JLTD Look a bit like bubbles to me; do they feel gritty to the touch? Yes, and magnetic. Originally Posted by Tjbouwhu Metal shavings from the drain plug threads??? Wayyy too many. and it came out of the oil from the filter too.

Yes, clearly the issue here is using a top brand oil... Ill switch to canola oil ASAP..

About 30K miles ago I started noticing metal flakes in the drain pan. I figured they were residual when i first noticed them from when a timing chain tensioner broke and the chain was hitting the front cover. Did a UOA when i first noticed them and came back perfectly fine. This engine has...

Not going to hurt it. You'll get people on the ford forums all day long argue about how a 5w30 will destroy your engine because of clearances etc... Try it out and see how the engine likes it! 5w30 should do pretty good though.

I agree about blackstone and the fuel. I meant to say that the darkening of the oil on the SN + variant doesn't mean anything.

One thing about the SN + version, the engine seemed quieter, but the oil darkened quicker than the old version. Not that that is indicative of a issue. The shear is disappointing. Maybe I can find the SN version and retest and see if it sheared.

OK to reply to the comments --- I think the high Si is because I took the sample from the filter as I was loosening it. I may have got some dirt in because it is in a really strange position. I forgot to get it on the drain. Also, no al in the filters. I think i found a single spec before...

As far as environment, I am in the mojave desert. This run saw 100*F and as low as 35*F and everything in between in about 2 months. Driving habits.... Most of the time normal.. I tend to have a heavy foot on it sometimes though.

I agree the big ones wouldn't, but if I had a issue where big ones were being produced, id have loss of oil pressure and a lot of noise. Oil PSI is excellent. (20 hot idle and around 70 @3K.) Has a little lifter noise but its a 200K engine.

It did shear, and it wasn't lowered by fuel dilution. This is the SN Plus version as well.

Little bit ago at 186K miles when I got the truck, one of the timing chain tensioners was busted and the chain was beating the timing cover up. 3000 mile oil changes since and never really looked for shavings until the last 3 changes and sure enough I found some. Non ferrous and appeared to be...