Cng works great in Axio..im using it for the last one year..there is no problem at all..and cng milage is very very very good in Axio..i would say go for it..REMIMBER do tell your mechanic to install ADVANCER in it if u r going for cng in axio..without advancer it will distroy ur CVT TRANSMISSION ..
Mehran say bi kam consumption hy axio ki in CNG