most likely a blown head gasket.
cracked head or bad gasket
Headgasket!
antifreeze leaking into the oil pan
HEadgasket failure, internal oil cooler leak.
your heater core has got a leak and needs to be replaced
No. they're dissolved in each other and are quite hard to seperate.
There SHOULD only be oil inside the valve covers. If they leak coolant you have a serious problem.
If it is motor oil in the anti freeze, then it is either a cracked head, cracked engine block, or a head gasket blown. If it is transmission fluid in your antifreeze, then the radiator is leaking from the transmission cooler ----- although usually that would cause antifreeze to be in your transmission fluid.
Because it 's leaking- OIL, ANTIFREEZE, or vacume leak
Blown head gasket.
You may have blown a head gasket, check you oil to see if the antifreeze is leaking into there.
The leak would vary on the size of the hole or seal failure.