my younger bro got new altis 1.6 a/t....its done 10.5k km now....we were using toyota petron oil n it was giving 8.5-9.5 depend on driving......i got him shell ultra fully synthetic 5w30 new pack which i was using on my civic reborn too...its much better in acceralation n less noise.... changed the altis oil at 10k km mileage has improved lil bit giving above 9-9.8kml