Hello! After a turbo damage to an Audi A1 35 TFSI (Beziner!) the engine oil was analyzed to find the cause. Curious is that 13.3% diesel was found in it. What do you know about these values? – How old is the oil? – Where could the diesel come from? – does it fit to a turbo damage? – and to a coked piston? (the analysis was carried out by an Italian Labbor – I hope you understand it anyway, otherwise simply ask, I like to translate it)