Hello, I really messed up and too rarely (actually never) checked the oil level at my Fiesta 1.3 Bj 1996. I then drove about 500 m with lots of noise and hardly any oil. The ADAC man then got him to run again, but said that the engine had got a crack. The Fiesta pulls quite well, but at a certain speed makes such a beating noise. If you then switch, it is OK again. Can you drive with such a damage for a while (and what is a For a while?) or does the engine fly around your ears at some point?