Fuel average is highly variable and dependant on a number of parameters. I'm able to achieve your quoted figure with an Altis CVTI in comparitively congested traffic. Achieving 11 km/l figures for a 1.8 Auto ECT entails driving in much better conditions (smooth traffic, less braking and little to no idling). Taking aforementioned conditions into account, 1.3 Manual will definitely return figures of around 14 km/l, as a bigger capacity engine takes a heavy toll during idling/ congestion, stop and go traffic.