bro better to drive on petrol,cng apki car ki mileage petrol pe b tabah kr degi n cng pe cultus tak hi maza ata hai,cng pe na hi pick up hogi,na hi engine ki life itni rahegi Q k cng dry hoti hai max 2 saal or engine farigh,meri car mein b cng hai bt na kisi se uski prob diagnose horhi hai or na hi cng milti hai yahan rwp mein,9 ghante monday ko or 9 ghante thursday ko,banda roza rakh k subha 6 bajay se hi lines mein ghusa rahay?baaki apki marzi hai bt behtar hoga agr running ziyada hai apki to koi choti car le lo like 1000cc or 800cc jo fuel efficient ho or cng pe b chala sako,kam se kam dukh nai hoga kal ko agr kaam nikalay b,baaki apki marzi,best of luck 