Ok, re-post now without my personal information on the report! First oil change was at 5K with Mobil1, second oil change at 10K with Amsoil. I have been running 10k intervals since. Attached is the report with the 20K, 30K and 40K results. The 50K sample is sitting in my garage and I just did my 60K oil change this weekend. As soon as I get a chance to ship the samples out, I will report back.