I think all the silicon is harmless and contained in the oil and not a contaminant. The aluminum and iron are probably still just washing out or break in. With Honda MTF starting at 7.5 Cst and shearing down I think you could easily run this oil for 25-30K. Is it harder to shift in the cold? Is this 75W90? It says 75W80 in the report is that a typo? Did you do any analysis of the factory fill with 6k on it?