A trick to get more CNG mileage n make some one blind,,,,,, get refill your car full tank then leave it for 2 days, in night open air & in day time in garage,,,,,,,,,then again refill CNG n approx 25-30% cng more come in your car,,,,,,,, 2nd trick once im coming from multan va fsd-isb motorway, refill from fsd then stop on bhara interchange on motorway CNG station, the guy on station ask me "bhai cylenderon wali gas ha meter par or Gage par kam show ho gi mager mileage puri day gi " i think some thing frod but i ask ok refill gas of amount 500 rupes,> refilled > just 8-10 see> even i cant see meter > drive few meters n see only one CNG lite shown out of 4 > stop the car > open bonat > 30 bar shown on meter > n in these 30 bar gas i covered about 180 kms n car is mehran n once my car touch 135 km/h (rest it max speed on cng is 105-110 on motorway) with total 5 members a stand on roof 2 big bags on it...... imagine in 30 bars car cover 180km n in 200bar what happen,