Every time I see one of these it's kind of like my hypochondriac sister going to another doctor.
He does another test that she has no knowledge of why or what its for.
Then she gets the results - even if normal - and then goes on the internet to look it up.
And all of a sudden she's dying.
If you're not having any problems then don't go getting all twisted up on a new test or its results. The engine is already old enough that you're not going to change anything. The time to start was the break in
oil and the first few after that.