Thanks for posting. I've been a long time user of Motorcraft FL820S. I currently have 194,000 miles on our 2005 4.6 Explorer, which used these filters for most of it's life, some with the yellow PureOne oil filters. We've owned this vehicle since new so it's been well cared for. Early oil changes were 5,000 miles when under the 75,000 mile warranty. Afterwards they went to 7,500-9,000 mile OCI's. The oil still comes out a dark bronze and looking in the oil fill shows it to be relatively clean.
Whimsey