@panic, sirg tussi pori baat nae kitti, CNg does eat crap out of a cars life as smoking does to a man. the thing is that wen we install CNG we think gari petrol pe start hoti haina kaffi hai halake once a month the car shud be driven on Petrol atleast a gud 300 kms. this way gandi se gandi gari (liana Baleno, even they dont misfire)
But if u drive it like ghada gari chara kha aur chalti jaa obviusly its going to give you issues. but on CNG other costs also increase
if ure only driving on CNg.
every weak the airfliter needs cleaning.
Battery dies prematurly.
lesser oil drainage intervals
the Fuel system gets out of order.
the fuel tank, the fuel pump, the fuel filter, finaly the injectors.