While i was a bit annoyed and felt your comment was dismissive, i also recognize that you have been knowledgeable and generous with your time and information for many years. And have helped me several times. So i should bite my tongue. But then, you should read the facts too - not just the ones that align with your opinion. Corrections below.
On to the oil .....yes, for this UOA the oil was M1 HM 10w40.
And, as i wrote, M1 HM 10w40 was also the oil in my other boxster, some time back, track use, blah blah, metals around 1/3 the level. Twice.
And the earlier UOA on this car, with even higher (but essentially similar) Fe and Al was not M1 HM 10w40.
The oil in my audi when i was used on the track a few times was a cocktail of thick, high-ZDDP oils. Same brand, different viscosity blend. But thick.
And no its not in error, it does not say on the sheet - it only shows the oil for THIS UOA.
This is becoming painful, as if you are a lawyer trying to find the conflicting testimony - but how about simply taking my word that there is no consistent evidence that the oil makes any difference here. Let's just start with that and move on, ok?
So begin with we have samples with M1 HM that are ~8ppm and others that are ~25. and we have two samples at ~25, one of which is an A40 rated oil. For laughs the A40 oil was the worse one, but so close as to be statistically insignificant.
Time will tell, and i will experiment with different lubricants, but i honestly don't expect much difference unless i do something known stupid like use an oil with marginal HTHS viscosity (like some wide viscosity oils). We know how they perform at 300 deg+, no debate required.
The question is now what is going on. Is it a crap motor i bought? Is it a different wear pattern? Might it be higher G-loads causing oil starvation ( a known issue > 1G and these sames are both before i installed the techno-sump)?
A few other incorrect assumptions you are making: the oil in the Audi, and i said so, is a lab-sourced 5w40, not any commercial oil and certainly not M1 01w40. So references to how it performed in the Audi are simply misleading. let's get the basic facts straight.
As to knowing more than the experts. Sigh. Many formulators do not agree with your assessments. But there are some that do. Its clearly - and my tests demonstrate it - not consistently deterimental, or the other M1 HM 10w40 tests (and many of Pedro's customers) would have shown the same results.
Again - there is zero correlation between the oil and the results, but 100% correlation between the unit (car) and the results, even as the oil is changed. You seem to keep missing this simple point - i really dont understand why.
I will update as i get more data. But that takes time. And, of course, variables vary - such as the techno-sump.
Grant
Grant
gee-lenahan-at-gee-mail-dot-com