i have a 50 cng cylinder in cuore. in january to till. my car gives me best average 230km. but in 2012 it gives me just 188km on full cylinder... i just change the head gaskit of car . the point is that does replacing gaskit depend upon consumption?
from point view it should not change the average... from my point of view , a worn gasket is leaking combustion. which result in low pickup.