Couldn't ask for a better report. 35K on the vehicle so far, no make up oil was added between changes. Was concerned about Toyota's 10K mile, 1 year oil change schedule as I have always been a 5-7k OCI guy. Looks like I didn't need to worry and Toyota engineers got it right, at least with this engine and Pennzoil Platinum oil. So all you 5K synthetic oil change stalwarts (like me), please get a UOA as you may be wasting resources. Was about an 8 month interval with combination highway/short trips. Now have to check my Camry with the 2.5 liter 4 cylinder and 0w-16...................