Honestly i dont know much about the motor oils, and we've never had any engine issues in the past 8, 9 years in any car since we started going to Toyota Islamabad. So i always thought they must know what they're doing. It's seems that i was wrong to think that.
Our 2012 Gli was driven about 350,000 kms. As it was govt car every single thing, no matter how small, it was all done from Toyota Islamabad since day 1. We never really asked what oil they were using lol. But we never, not even once, had any issue or break downs with regards to engine.