For a turbo engine, I'd pay more attention to a Euro formulation with ACEA C3, MB 229.52, VW 504/507. They typically have better HTHS properties, which was one of the driving factors for my switch to Mobil 1 5w30 ESP. But, your engine, your choice!
Machining tolerances do seem to tighten to a degree, but the engineers are not going to design a system without taking into consideration operating environments globally and individual use. There’s a reason international manuals indicate optional viscosities. Chat is not always correct or...
I switched to 5w30 ESP here in Houston. Absolutely zero justification to stay with a 0 or a 20 for hot weather climates. The turbo is going to shear the oil down to roughly a 16 by the time you run an oci. Mine was already in the low 7’s/6’s on 0w20. International manuals indicate you can use...
just order your oil and toyota filter from walmart with delivery (free btw). Cheapest place I've found the toyota filter and the oil is dirt cheap too. Never trust the dealer... know your part numbers before going if you absolutely need to.