Water in The Oil Pan (How to Fix It)

Your engine could be experiencing issues such as cranking or overheating. This could be a sign that there is water in the oil pan. 

In the engine coolant, water is mixed with antifreeze. This coolant stops the engine overheating. Because of engine damage, coolant can seep into the oil pan. This will cause engine oil to mix with water. 

The oil pan can contain water that could cause engine damage. Let’s take a look at what happens when water gets into your engine’s oilpan. 

What happens if there is water in an oil pan? 

To keep your engine running smoothly, and to manage heat, oil is necessary. 

Your engine can be affected by water in the oil pan.

  1. The oil in the oil pan reacts with the oil to make an emulsion. This emulsion could block the oil flow to the engine. 
  2. Oil can freeze in extreme cold conditions if it has water in it. 
  3. Water can cause corrosion and rust when it comes in contact with engine parts. 
  4. The oil pan may collect water that can lead to sludge in the engine. 

Why is the Oil Pan Watery? 

There could be many reasons why oil pans might contain water. Here are some possible causes: 

Faulty cooling system

To transport heat, coolant containing water and other heat-control chemicals is carried through engine block and to cylinder head. If the coolant system fails, coolant can leak and be mixed with the engine oil. 

You should have your engine’s cooling systems inspected by a mechanic if you notice a light-colored stain around the radiator or hose. 

Head of damaged cylinder 

Coolant must flow through the cylinder heads to ensure heat transfer. A failed head gasket can cause damage to cylinder heads. If your cylinder head cracks, water could leak into the engine oil and mix with it. 

You should inspect and replace your cylinder head as soon as possible. 

Engine Oil Moisture 

This is common if you use low-quality oil from a nearby brand. mix both oil brands. A cheap engine might contain moisture which could cause engine problems. Although the moisture is not directly affected by the engine oil, it can have a detrimental effect on the engine over time. 

Each oil has its saturation limit, beyond which it is unable to hold water molecules. Use high-grade engine oil from a reputable brand They contain correct additives which provide maximum lubrication to the engine. 

Damaged Head Gasket Seal 

Head gaskets are responsible for sealing the engine head & cylinder to prevent oil and coolant from leaking into it. The head gasket can burst during overheating, which causes coolant to get mixed with the oil and the seal to fail. 

To prevent leakage, make sure that your mechanic changes the head gasket. 

Broken Sealing Rings 

Your coolant might cause corrosion, which can lead to the seal ring becoming less durable over time. Improper installation can also lead to squeezing or breaking of the sealing ring. Water from the coolant can seep into the oil pan. An oil cooler can also let water out. 

Check your water cooler tank for watermarks. Replace the sealing rings if they are damaged. 

How do I know if there is water in my motor oil? 

Let’s take a look below at signs of water getting into the oil pan. 

  1. If you notice white-milky smoke The exhaust. 
  2. Hot steam is an indication that the oil pan water is evaporating if you open the engine cover. 
  3. If you see any water while draining the oil plug from the drain, it is best to stop. 
  4. Your oil may appear thinner than normal if it has been diluted with water. 
  5. If the dipstick is contaminated with water or any thin liquid, If your engine is heating up, it could be because of water. 
  6. If the oil pan is not completely dry, water may have settled in an oil tank. 

How to remove the oil from your pan 

To get rid of oil pan water, drain it from the drain plug. Some people may be curious if oil can be drained with water, since the two are inextricably linked in the oil tank. 


Because water is denser that oil, this will not occur. This means that the oil will rise up to the top and the water will settle because of their differences in densities. 

You may now remove the drain cover. Any water remaining in the oil tank and other fluids will then be released. 


  1. Remove the drain plug. 
  2. Let the water drain until the mixture of oil & water is seen draining from the tank. 
  3. Use the drain plug to stop oil-water mixture flowing and let the oil and water separate for a while. 
  4. Continue this process until all oil is gone from the tank. 


You should treat any oil tank water problems as soon as you see it. Sludge accumulation and overheating can all lead to problems with your engine. 

To check if coolant is leaking, inspect the head gasket and cylinder head. If there is excessive water in your oil, drain it or change the oil. 

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *