I have a small fracture on one of my injector pipes,which is spraying oil all across my engine,I have monitored the amount of oil loss,and it is not significant at present,that is too say,as long as I keep an eye on it and to the front of my mind at all times.
Should I be really concerned about this or should I change the pipe in question immediately and should I change the whole set of 4 or just the one with the fracture?