milky white tranny oil

so i was changing my oil and it was milky white like water was in there but i think coolant got in there because i had to put a water bottle and a half to fill the rads. also when i opened the rad there was some oil floating around in there. im thinking its the waterpump seal but what are your thoughts?

Water pump seal or blown head gasket. Water pump seal is most likely as it is a wear part (seals a spinning shaft). Has a top end been done lately that would make the head gasket more suspect? What bike and how old?

i had the same thing recently, it was the water pump seal.

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