raja to be honest, the petrol engine is very choosey, if i feed it speed 97 and coast in gear wherever possible then 16.5 if i maintain a very gentle foot at 65km/h
if i use regular speed from good pump 15.
if its not a great pump but your other cars run flawlessly it all give 14.
if you throttle more quickly even slightly it goes down. say 14.
hyundai petrol engines are sensitive to fuel and driving style.
unlike honda, their made to be run in vtec mode.