What is problem Engine oil inter in radiator why?

Question

Accepted Answer

Engine oil entering the radiator is a problem caused by a faulty oil cooler or a blown head gasket.

Engine oil intermixing with coolant can lead to engine damage and overheating.
A faulty oil cooler can cause the engine oil to mix with the coolant.
A blown head gasket can also result in the mixing of engine oil and coolant.
The presence of engine oil in the radiator can be identified by a milky or foamy appearance of the coolant.
Repairing the oil cooler or replacing the head gasket is necessary to resolve the issue.

Accepted Answer

95% oil cooler problem