Ayan, route. Kung ano dinaanan niyo.
My only concern is that posts claiming that the Ertiga does 17 km/L in pure city driving is misleading to potential buyers that read these threads, because reality is that noone can do that on a regular basis (unless perhaps you live along Commonwealth and your office is Technohub and you leave before traffic builds up).
If you wanna convince people of your car's FC, show conclusive data. Eto sample, collected over several thousand km:
Each fillup also has a description of whether it was pure city, mixed driving, or highway if you click the individual entry. Malinaw na nasa 8 km/L yung city, 10-12 km/L mixed, and 14-16 km/L highway. That's not from an Ertiga, but you can do the same with your car so you can determine what FC your car gets in everyday driving conditions instead of making claims based on one-off events.