I imported two-door Diahatsu Mira (L275V 2013 model) in 2017. The fuel average in the city in very low, around 11km/liter. In past one year, I have done the following but there has been no benefit:
1) Catalytic converter cleaning by Carismatic (no benefit)
2) Brand new imported Denso Iridium spark plugs for Mira installed (little benefit, fuel mileage rose to 12-12.5 km/liter).
3) I have recently changed CVT Fluid as soon as the odometer reach 100,000 kilometer. (no benefit)
My friends have similar cars and they are giving average of 15-17 km/liter.
I have searched for solutions on many threads but I have not been able to find any.
Please suggest what should I do now?