Oil Contamination in Water Coolants Empowering Effective Mitigation Strategies

The only thing that can cause it is a head gasket leak. You will need to have the engine pressure tested to see if the head gaskets are leaking. A blown head gasket allowing oil into the coolant would also allow coolant into the oil, causing a frothy or milky look. I'm getting oil in my coolant but not coolant in my oil. Everyone says head gasket but then when I say no water in the oil that's when I start ... I'd say say flush the coolant with distilled water first the refill with 50/50 and you should be good to go. I second replacing both of the gaskets. Be sure to ... If is oil cooler it's easy to change and after you need to clean your water cooling system,after couple good washes(means 10+ ,drain water add ... If you have coolant in the oil, it's seeping past a head gasket more than likely. I'm not aware of a way for a water pump to cause an internal ... Under the oil fill cap there was that light brown stuff that forms when oil and water come together. Also drained the water from the coolant ... Check oil cooler or areas where coolant and oil channel closely. Had oil in coolant once- was the oil cooler gone kaput. Was a different engine ... This would allow coolant to leak through over time, and the water would drain down through the rings down to the oil pan. Diesel engines were ... Check your transmission dipstick for possible coolant contamination, also. That "film of oil" in your coolant overflow tank may not be that much ...