Elevated silicon not silicone in Amsoil 0W30

[oldchuck]

Sorry for the error in spelling. My silicon levels are listed by Blackstone at 34 and the average is 14. The curious thing was both vehicles are about the same level. I use an EAO amsoil oil filter on the Tundra and a Pure One on the Subaru. Both have factory air cleaners with 15,000 miles. The one thing I did not mention is that for about 3 months of the oil life, I was on dirt roads twice a day in dry conditions. That may be the cause of the silicon because it is one common factor. The oil did not seem to cause any wear and the TBN was 2.7 after 12,000 miles. I changed the Tundra and will see if this batch without the dirt roads is lower on silicon. Thanks for the input...