I have a 1948 Ford 8N. It has a flat head four cylinder engine. Here is something I have never seen before. There is oil in the radiator. Now I would think that if oil got into the radiator then water would have to get into the oil. It does not. While I am glad not to have water in the oil pan, I sure would like to know where and how oil gets into the water. NO!!! I did not dump it in there.