Yes my first Diesel Car..Why? - - - Merged Post - - - What is the Tyre pressure i have to maintain....last time I used 33 in all tyres. - - - Merged Post - - - - - - Merged Post - - - Anybody Please advice me what speed limit i have to maintain in a new car. Somebody told me not to drive the new car above 70 KMph or 60 kmph to get engine life and good mileage. Is that true.? Please advice - - - Merged Post - - - I m driving in the same road. - - - Merged Post - - - I m driving the diesel model. Do i really check the wheel alignment as it is a new car?