Originally Posted by dnewton3
Is that 95 ppm for Fe?????? Your Fe averaged 10.8ppm/1k miles in your first OCI. Now you're averaging 10ppm/1k miles. That's a high wear rate. However, being a new engine on the second OCI, I'd say it's OK to disregard that, but I'd be cautious if that wear rate continues.
Not sure what you're doing with this. Is this a work truck? Are you traveling around the States? Can't understand how you get 85mph speed limits and high elevation while in FL, so I can only assume you're moving about the country. That would indicate to me you're driving for a living, perhaps?
I'm not saying it's time to panic; not at all. Because this engine is young, there will be some break in. However, all your other metals are already very low, indicating much of the break in is already completed. Normally the Fe would probably primarily from the cylinders under heavy loads, but that is often accompanied by some Al due to the interaction with the pistons; you don't have any Al wear to speak of, so I am left curious where the Fe is from? Just odd that your Fe is so high while others are appreciably low. It's not silica ingestion; that count came down to less than half it's previous level, but the Fe wear rate stayed the same.
Stay the course; do a few more UOAs and see where it finally settles at. Then reassess.
Need more data points. An increase over one interval is meaningless, IMO. Acknowledge and agree with your suggestion for monitoring.
Originally Posted by BeerCan
Thanks everyone
I travel for pleasure,but I do drive a lot. I am about half way through my next run on this truck. Maybe I will sample a little early, like 7500 this go around.
Look forward to it. I wouldn't drain earlier than intended.