Wish full tank gas is about smelly smelly 260km , some average 285km .
Say u tried 312 km , meaning u used about 27km , meaning u pump petrol about $5
what u spent should be $32 for full tank CNG and $5 petrol .
I dunno how come u pump $34.66 for petrol ?
$34.66 is for previous usage lar , u cannot count together within that 312 km .