Jonny, What I meant was that an engine run extensively with a cleaner oil may still look good even after going back to a conventional because there hasn't been an accumulated amount of time back on a product producing sludge, etc. and the interval is shorter so there would be less wear metals due to the shorter interval change. However, you show two changes on supertech so I might be wrong. I don't believe in magic oil having an affect long after it is gone! Although reading my post again, I can see how you could read it that way! I was thinking of it in terms of a smoothly running motor slowly getting roughed up again.
The equivalent readings based on time on your latest oil change would be about 5 on aluminum and about 30 with iron in comparison to the one posted by 370 on a per mile basis, so you are getting about twice the iron wear and about the 25% more aluminum wear with the supertech, but overall not bad. From what I see, the synthetics are not much different than the conventional.
I have to change my oil this weekend because the miles keep going up and I have some driving to do. I will conserve some for the test kit I ordered, and check again the next couple changes to see what is going on and get some QB in there. That might be a benefit for the whole community, or at least for us little guys, the pentastar v6 drivers!
I pretty much understood what you were saying. I'm just not sure I buy into a significant amount of particulates, out of suspension, becoming suspended into the next oil change. Does that make sense?
Also, as far as comparing two different cars using two different oils... or even the same car with two different oils, but under different conditions... that's like comparing apples and oranges. They both are very similar, yet so different.
If we can pick (cherry picking...) the cars for store bought synthetics to use as a baseline, I would choose to use a certain 2006 R/T with 200k+ miles...
Same car/engine I have... same oil I've used.... different conditions!
Don't go by the results someone else got with an oil. Try it yourself, have it analyzed by a lab that YOU choose, and be sure that you are the one sending it to the lab, and receiving the results.
If it works great for you, excellent!
I try not to put too much weight on manufacturers claims, they all say they are the best.