salaam all:
maker's name / model: vw / beetle
engine capacity: 1.6 litre
year of manufacture: 1968
cng kit brand name: lendi renzo
cylinder capacity: 55 litre
fills in approx rs. 400~450 [08~08.5 kg / 3200 psi]
range: 160 km in town running (no a/c in vehicle)
well i have noticed that many vehicles have dead leaks in their system. after a tank full & vehicle static, pressure drops from 3000 psi to 2400 psi in 8-10 hours. one may attribute this to the gas being cooled down after compressed into the cylinder, but to me it certainly is not the case.
i suggest everyone to keep an eye on the pressure guage after the fill-up, and then 8-10 hours afterwards. true picture is only possible when you don't drive too much after filling her up! a difference of more than 200 psi definately indicates some leak in the system or your cng station is pumping '"air" alongwith the natural gas!!!
rgds