i have cuore eco 2004 and its giving me 85 with a/c and 100 w/o a/c....my mileage is very low as i have listen from other cuore drivers that their cars r giving then about 120 km with a/c .....i wanna chk from other eco drivers that whats their mileage from their cng on full cylinder..as i have no problem of tunning ..what should be the prob?how can i increase my average.where should i chk my car in karachiii...advice from experts needed