problem with motor

hello , for the first time in the forum mayicht one can help me. I have a ford probe v16 for 5 months, and have the following problem ….. if the car is a night long he starts to smoke quite long and very strong… white very dense smoke I step on the gas gets worse. I was in 4 different workshops and asked 3 could not help me any more and the 4 said the cylinder head seal was broken. I then went to a ford workshop and said that the engine is broken or even already broken …….. which I can’t imagine again because it runs pretty good and very quiet. and most of the time it’s that when the whole qualm is out there was s that for the whole day until the next morning ……! for every answer I’m very grateful mfgg