How Do I Perform RV Oil Analysis?

I was asked by the owner of this 2001 Beaver Patriot Thunder to have an oil analysis performed on the Cat C-12 engine. It has 161,000 miles on it and they are concerned that the engine may have hidden problems. So please understand, I am not a scientist nor well versed in oil chemistry, but I will take you through the process and try to explain the results with mixed results.
Surprisingly, it is fairly inexpensive to do, and with Empire machinery service centers nation wide it is not a very difficult task.

oil sample pump link:
https://amzn.to/3tqVEpo

link to the Cat How to:
https://www.cat.com/en_US/support/maintenance/sos-services/take-sample.html

link to understanding the results:
http://s7d2.scene7.com/is/content/Caterpillar/CM20170912-42785-60202

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