You have the same engine that I do, the 3MZ-FE. 7,500 miles is probably good. Now that I'm clear out of warranty, that's what I'm doing with my QSUD fill.
UOAs I've seen from another 3MZ-FE owner showed his oil was still good, but due for a change at 15,000 miles, consistently when using synthetic. Too long to be comfortable to me, but I feel confident going out to 7,500 miles.
UOAs I've seen from another 3MZ-FE owner showed his oil was still good, but due for a change at 15,000 miles, consistently when using synthetic. Too long to be comfortable to me, but I feel confident going out to 7,500 miles.