Hello! I had a problem with my Opel Omega 2.5 V6 BJ 12/94 Last year I had the timing belt changed at ATU, which the specialists didn’t know is that the timing belt cover also has to be changed, because the rubber seal can otherwise solve itself. Of course it also has this and the timing belt ran over. Result: Zilinder head rework all valves new , nock waves. Two weeks after that it smoldered in traffic jam once. Engine damage!!! And again to ATU. Car brought to a motor repairer who has re-drilled all the zillinders, new pistons, new plugs and bearings and re-worked the Zilinder head again. Now about 4weeks after that again strong oil loss(about 2Ltr. at 400Km) Now meie Question what do you think it could be,Phusch, hair crack or anything else???