usually a head gasket
Sure you can drive it but, you need to ask yourself, why is there oil in the radiator? If you did not pour oil in the radiator then you have a problem. Most likely cause is a blown head gasket. This is extremely serious, and will destroy the engine if not repaired.
either the transmission oil line to radiater is not tightene or the oil cooler tank at bottom of radiator has a leak
Does it have 2 lines coming from the top of the oil filter, and going to the radiator. If so that is the oil cooler. You need to replace the RADIATOR Those 2 lines go into the radiator so it can cool the oil, and the tubes are leaking oil into the coolant.
The first step is to find out how it is getting in there. Normal cause is a failed transmission cooler. That may be part of the radiator itself. After the cause is repaired, you will have to flush the cooling system until there is no more oil in it.The first step is to find out how it is getting in there. Normal cause is a failed transmission cooler. That may be part of the radiator itself. After the cause is repaired, you will have to flush the cooling system until there is no more oil in it.
broken engine gasket.
Cracked Head Cracked block Blown headgasket Failed oil cooler (water over type)
It Could Be a Bad Gasket that causes water to mix with coolant more than likely you will see white dough like substance in radiator.
Really need to know the year and engine size. But you can check this, Does your engine have 2 lines just above the oil filter that run up the side of the engine and goes into the radiator on the drivers side ? If so then that is the engine oil cooler lines and the tubes in the radiator were the oil flows through to cool the oil are probley leaking into the radiator coolant. IT happens often. WILL NEED TO REPLACE RADIATOR. And flush out the cooling system real GOOD. Did your engine freeze from lack of antifreeze ? If the radiator fluid is cheery red looking then the transmission cooler that is built into the radiator is leaking. REPLACE RADIATOR. GOOD LUCK.
Failed transmission oil cooler, which is part of the radiator.Failed transmission oil cooler, which is part of the radiator.
Lack of coolant in the radiator. Fan not working. Not enough oil.
no oil in engine or water in radiator will cause engine to seriously o/heat! and eventually seize! major engine damage!!
Oil in the radiator is usually an indication of a leaky head gasket.