I have bought a new Cultus VXRi CNG. I plan to complete the break-in period for the engine (1000km) on petrol. I have already done 150km on it at max speed of 70km/h (2.5krpm). Now I want to go to Islamabad on Motorway on this vehicle. Please advise:
Is it safe to take thie vehicle on motorway where one has to keep constant rpm?
Secondly, what should be the max speed/rpm which will not harm the engine for the break-in period?
e.g. Is it safe to run at 80-100km/hr in 5th gear constantly on petrol through 350km on motorway?