Cummins 5.9 ISB - metal in oil samples
I have had two oil samples in a row show high metal particle content in the oil; chromium, I believe, especially. The motor has 130,000 miles, and is running perfectly. After first oil sample showed...
Forum Discussion
Chrome is from rings, tappets or cam.
If you have an older 5.9 you will have a tappet cover that can be removed for inspection - which will give you a much better shot than the pan.
If you have an older 5.9 you will have a tappet cover that can be removed for inspection - which will give you a much better shot than the pan.
