^i dont know why people are saying that it is ok if it gives 110 or 120........thats too low.........atleast it should give 180 minimum or else there is a problem..........I use Zic A+ oil, always gone to suzuki's mechanic for tunning, check the tyre pressure regularly and change the filter if it gets dirty(rather than cleaning, i prefer to change it) plus I regularly maintain the car no matter what.....my car has I think never gave less than 180km on one cylinder, dude the red light of the cng gauge turns on at about 185 or so.........do check the car for problem, there is bound to be some as 100 km is toooooooooooooo low....