Dear members, i own cultus efi 2007 model with 63k on odo. it has a problem that on motorway it doesnt go above 110kph in petrol as well as on cng. sometimes it reaches 120kph but that too on going down a steep.
recently i drove on lahore islamabad motorway and it couldnt reach 120kph with 5 people in the car and the car lost power when going up a steep the car came down to 80kph and stayed there.
The engine is perfect as per my thinking no oil drinking, good perfomance in low speeds it is fine upto speeds of 100kph, did its tuning and tappets from suzuki workshop but still the same.
Experts please share your opinions as i dont want to get rob from suzuki people.