Well, if you search the internet even - it does recommend to switch to thicker grades on some sites but only when the engine is either reducing oil, or quite old (more like an antique piece) to avoid burning the oil quicker I think.
67k run is nothing even in PK climate. Just keep on going, no need to do anything unless you are facing an issue or an anomaly.
@Xulfiqar can surely share more practical insights but I believe we have seen these sorts of discussions multiple times on this forum, you can even try searching with similar keywords, you might even find something.