Hello everyone, The last time I posted the continuing results from this experiment (back in May), I stated that it would be awhile before I posted another UOA result, because I was taking the current fill all the way to 10,000 miles. I still intend to do this, but it occurred to me that it would still be useful to have another data point at 5,000 miles, to once again test the Amsoil EaO filter, and to compare the results to the 10K mile UOA [Note to self: Duh!] I am glad that I did this, as the results for this Amsoil EaO-34 filter are much better than all the previous ones, and the results equal the performance of the Mobil 1 filter. It makes me wonder if the two Amsoil filters used for UOA #3 and #4 (which were purchased at the same time, over a year ago) were of a different design or used different materials than the current one. The next UOA I will post will be from the SAME batch of oil currently reflected in this current UOA, as well as the SAME filter. It will be quite interesting to see how the results compare. Also: Please don't tell my wife that this experiment so far has cost over $500 just in Oil Analysis costs! Comments? I will post another UOA at 10K miles!