Blown head gasket, cracked/warped head, or both.
The coolant has oil in it. Possible causes are a failed headgasket, or a leaking oil cooler,
Coolant mixing with the oil from a blown head gasket.
this is usually engine coolant leaking in
if there is oil in the coolant system it could be a crack in the intake, a ruined intake gasket, a cracked cylinder head
It usually means you have coolant in your oil. Cracked block or bad gasket?
Blown head gasket or cracked head.
Heat, lack of lubrication, or coolant in the cylinders or oil pan.
There are a couple of things that can cause oil to get into your coolant reservoir. A blown head gasket or a broken piston ring are the most common causes.
This is most likely a severe failure somewhere internally in the engine that resulted in coolant in the oil. different root causes are probable. oil should be checked regulary (do a oil sampling) after it has been replaced.
Milky oil is oil with water in it. The water is usually coolant. Common causes are failed headgasket, cracked head, internal leak in an oil cooler.
If you're noticing oil mixing with coolant, possibly a bad intake gasket or head gasket.
Coolant is getting into the ATF possibly through a hole in the oil cooler