My civic Exi manual 2003, 129000 km driven gave me 173 kms with full AC, from 9 kg CNG with speed of 120 km on GT Road Lahore-Multan on last Saturday. I use to keep rpm below 3000 rpm.
On the way back it gave me 15km/l at a speed of 120 km with full AC on this Monday.
And I am sure if the CNG would be 10 kg with speed upto 100-110 it can easily achieve 200 +/- 5 km on long route, the figures I have given are of GT Road where speed fluctuates due to population and traffic, on motorway it can be alot better than this.
Got its throttle body cleaned prior to this trip, radiator got serviced, AC serviced, balancing, air pressure check, tyres are 205/55R15, new air filter.
Civic EXi Prosmatec 2002, 121000 kms driven also give almost the same average driving it in city and its giving almost 12.5 km/l with AC. However my daily journey (almost 45 kms a day) hardly encounters three or four signals.
