Bro, it should easily last 5000-7000 kms. After 5000 kms, you should start keeping a check on it's level, and especially; color and viscosity. If these start changing, you should go for oil change.
Guys at Total Parco oil change stations say that Total Quartz 9000 lasts 9000 kms, 7000 lasts 7000 kms, and the same goes for 5000 and 3000. I do not believe in these and one should also not listen to it.
Just change, when you see that there is a need for it.