Very good to know, as this was my key worry about using an oiled filter...thanks for sharing this real world experience. Also, in my research, I found out that the OEM paper filter has 99.1% filtration efficiency per ISO tests, which isn't much better vs MS.
Originally Posted by Leonardo629
I recently did an oil analysis, and no silicon issue was found in my sample. I'll have to say, as far as filtration goes, MS stage 2 intake is 100%.