Hi, i recently bought cultus vxri (efi) 2010 model.when i was driving ALONE on motorway(to lhr) the car touched 120kph easily on CNG (i didnt go beyond this as speed limit is 120 on motorway).
a few days back,i was going to gujranwala with family (5 members including me).THE car was on CNG again but this time on full accelerator it touched 115kph only, on Motorway. On my way back to lhr the car was on petrol and it touched 130 even on GT road.
any reason or suggestion so that my car remain economical as well as on max speed does not get affected.
regards
P.S: oil and air filter is changed a few days ago before buying this car and i havent done its tuning yet.