Yes.
You probably have a cracked engine block and engine coolant is mixing with engine oil.
Yes you can. A cracked block does not necessarily mean the car will overheat. If a block is cracked at a coolant jacket then coolant will leak out and the car will overheat if the leak is bad enough. If the leak is not very major or if the crack is at a point that does not have a coolant jacket then it will not overheat. A cracked block could leak oil, compressed air/fuel, coolant, or nothing at all and still be cracked. -R. Mesyef
Freeze Out plug, cracked block or waterjacket.
how u know the block is really cracked
Depends. If it just becomes mushy or freezes very little, probably no damage will be done. if it freezes solid, you will have severe internal engine damage. Cracked block, or cracked head is common.
Visually on the outside. Internal cracks there will almost certainly be a mixing of the oil an coolant one way or the other.
A cracked "engine housing" probably means a cracked block. Very not good. A new engine will most likely be required to fix the problem, as a cracked block is next to impossible to repair.
By overheating, by ice if exposed to cold with not enough antifreze in the coolant. By overpressure if they get flooded and cranked, or if its a turbo engine with a faulty wastegate.
The most common cause of this problem is a leaking head gasket. Other causes include cracked head or cracked block.
You can drive a car with a cracked engine block, but it will eventually stop running. The engine will go out completely after time.
it is not a cracked engine block it is just a loose block
If your block is cracked engine coolant may be leaking into the combustion chambers.