As we told you; in fact, if you'd gone all the way down to a 0W-20 you still wouldn't have any issue.

 

With the traffic condition here (too much stop and start), age of the car and the thickness of the oil that I used previously, 0W-20 is low/thin. It's probably ok in your region.
Thanks for all your inputs by the way.

 

It is clear you don't want to believe it, but 0W-20 is more than robust enough for anything your driving environment in your region can throw at it; regardless of how many miles are on your engine.