Potassium: 3 Copper: 19 Sodium: 2 Iron: 20 Chromium: 1 Aluminum: 3 Silicon: 9 Lead: 3 Tin: 0 Soot: 0 Sulfation: 27 Oxidation: 21 Viscosity 9.8 I had a kit sitting here so I used it. I would have liked to see how much moly/zinc & stuff this oil has, but Cat must not think that important. The test was done by Zieger Cat SOS Services. I ran this 7500 miles with 20% left on OLM. A lot of highway, but also some idling. The truck has 62,000 miles on it. Also I live on a gravel road and drive on construction sites so it breathes a bit of dust. I use Wix air and oil filters. I have always wondered if this oil is up to the task and apparently it does ok.