Superior Lubricants 0w-20, 7400 miles, 07 Yukon 6.2L

Not just this OCI, across the board. I’m aware of chemical reactions from oil to oil, but thank you for restating that.

I’m just very surprised at the iron numbers all the way across the report. And that nobody seems to be questioning this.

That’s why I asked if I missed something.
'Cause the iron is what it is, for that unit, for 167 k to 190k.
 
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