Dave, I have a very high degree of respect for Jim Fitch and what I've read of your opinion on BITOG. With all due respect sir, I did not say that you can't discern anything from looking at, smelling or feeling or observing oil over time - quite the opposite he recommends observation as a basic and routine habit.
I absolutely agree with what you've stated, and my only point in starting this thread is to poke fun at those who think the COLOR of the oil means much more than the COLOR of the oil, barring mayonnaise or obvious engine issues. I stated assuming a healthy engine. Smell, feel, and observing over time have their own uses, but my main point, which I think stands quite well so far, is no one is able to tell for sure the 2,128 mile Castrol oil (which I'm sure is serviceable without testing) from the 37K oil (which I have UOA on). Having a little fun is my main point and I'm thrilled I think you seem to understand that.
If I were going to be mean, I'd take these samples to some quick change oil place, but I'm sure nothing positive could come of that.
All good conversation- No meanness intended at a campfire the discussion would be very lighthearted!
I cant type for squat and my brevity often sounds harsh.