As travelling alot n long distance, I've regularly drived w/ 2 preferred brand for ron95, shell n petronas.
Amazingly, petronas both power n FC wise, win. it even comparable with shell ron97!!
Well, that is the story with my car model.
Will try bhp, but definitely no to caltex or esso/mobil, not on technical reason thou...
but seem many here said those r good, will try them sumtime prior to long distance drive.
p/s: whtever result is, will stay w/ petronas ron95.