Pennzoil Platinum appears to be doing well in this engine, as everything looks great for this OCI just as my powertrain warranty is coming to a close. Wear metals in this case are even lower than my previous reports that had fewer miles over a similar six month change interval; presumably because of a higher ratio of short tripping compared to highway miles during those shorter mileage OCIs. My warranty will be over by the next oil change in the spring (60,000 mi), so I'll shoot for that 7,000/8mo OCI and check back in.