Originally Posted By: UltrafanUK
It might be a good idea to use an OEM air intake and filter, as the Silicon figures are a bit high. The Lead figures indicate the main bearings seem to have an issue of some type and I would be inclined to cut the OCI to 5K and if that does not resolve the issue it might even be worth moving up a grade to an Xw40. If you do have an issue with the main bearings, thicker oil often helps.
Oddly enough the insolubles figure also seems a bit high, which is another reason to reduce the OCI.
Good observations, and I tend to think there is some type of air leak on the bottom end of the engine rather than all the focus on the AF. My reasoning - look at aluminum. Relatively low and not changing with miles. Almost like something happened between 11/30/14 and 6/29/15 or a bit sooner, spiking lead.
It might be a good idea to use an OEM air intake and filter, as the Silicon figures are a bit high. The Lead figures indicate the main bearings seem to have an issue of some type and I would be inclined to cut the OCI to 5K and if that does not resolve the issue it might even be worth moving up a grade to an Xw40. If you do have an issue with the main bearings, thicker oil often helps.
Oddly enough the insolubles figure also seems a bit high, which is another reason to reduce the OCI.
Good observations, and I tend to think there is some type of air leak on the bottom end of the engine rather than all the focus on the AF. My reasoning - look at aluminum. Relatively low and not changing with miles. Almost like something happened between 11/30/14 and 6/29/15 or a bit sooner, spiking lead.