I am driving my Baleno on petrol from when I bought it 3 years ago only 2 or 3 times filled cng, so my Baleno is giving 10 km/l in city without AC and with AC 7 km/liter. But on cng my ride was given me 17 km/kg without AC and with AC it was given around 14km/kg in city.
What do you think the fuel average of my Baleno is good or bad?