Well, my experience with 1KR engine was good in Passo.
I still remember that I drove it from Lahore to Islamabad, then Faisalabad, then Hafizabad and then back to Lahore all through Motorways at speed of 110~120km/h with 4 adults on board. And engine’s sound was as good as like new.
I know many people don’t like 1KR-FE, but my experience with it was superb. I never spend any single penny on engine except to change the ontime oils.