I?ve read your comments and you are very confuse about choice of perfect engine oil for your new corolla.
When you will get it, then read the oil page in the manual and just follow it.
This corolla is being launched here in PK, so they already recommend the best oil with respect to atmosphere, petrol quality, environment, etc.
PK Toyota recommends 5w-30 & 10w-30 oils with SL or SM grades. And every OEM use these words as a thread ?to use genuine Toyota oils for better engine protection? etc. Honda, Suzuki, all the OEM use the same words as threat to use Genuine OEM?s oil. Whereas the truth is, its important to follow the viscosity and recommended grades which OEM has suggested in the manual. Rest is upto us that we choose Total, Shell, LM, Mobil, Caltex, Redline, Volvoline, Sinopec, Qalco etc. whoever has available blends & grades as per recommendation.
for best protection of your engine, just choose what OEM has recommended viscosity & grades. And keep using them. But remember its not only Engine oil which is important for healthy engine, many other things too.