You may have a cracked block on an inner wall.
Engine oil is mixing in probably due to a faulty head gasket.
Sounds more to me like a radiator problem.
Blown head gasket.Blown head gasket.
blown head gasket
blown head gasket or cracked head.
Bad Head Gasket. See a mechanic ASAP..
blown head gasket
if you are getting water in your oil its eather a busted hear or head gasket if no water in oil it could be water pump
condensation OR blown head gasket. Is it losing water in the radiator? If so, check the compression. from condensation from setting overnight,or a cracked head or blown head gasket if U are losing water from the radiator.I no water loss U probably have a very tight exhaust system that nas no leaks-& that's OK.
Blown head gasket.
There is water in the oil, it sounds like a head gasket. Remove radiator cap and start engine, if the coolant bubbles its a head gasket.
Maybe a bad head gasket. When cold, take the radiator cap off and start the engine. If it is a head gasket, water should shoot out of the radiator.