Tips Sahabat

Causes of Car Engine Oil Turning Milky White, Let's Check It Out!

10 April 2025
Penyebab Oli Mesin Mobil Berwarna Putih Susu, Yuk Simak!

Have you ever seen car engine oil change color to milky white? When you see the color of the car engine oil turn white, you will surely ask, what causes car engine oil to be milky white? Questions like this will certainly come to mind. 

To deepen your understanding of car engines, here is information closely related to the change in car oil color to white. 

What Causes Car Engine Oil to Be Milky White? 

The main cause of car engine oil turning milky white is the presence of water that has entered and mixed in. Oil should not mix with water or any liquid, whether from the radiator or floodwater that enters the engine. 

If your vehicle has just gone through a flood, it is better to take the vehicle to a workshop immediately. This is done to ensure that there is no remaining floodwater that has entered the engine. 

Water entering the engine will prevent the lubrication function from working optimally. Eventually, every engine will collide and wear out. You wouldn't want this to happen, would you? Therefore, when you see the oil change color, make sure to take the car to an official workshop immediately. 

Read Also: When to Change Car Differential Oil? Here's How to Check!

Is Milky White Oil Dangerous? 

When the oil has changed color to milky white, this is a sign that the oil needs to be changed and indicates that the oil can no longer perform its function normally to lubricate the car engine. If the oil changes color, and the engine is not lubricated properly, the engine will wear out and the components inside will suffer damage. 

In fact, the worst-case scenario is that the vehicle could stall in the middle of the road and cannot be restarted. Thus, it can be concluded that oil with a white color is very dangerous for the vehicle and the safety of the driver. 

Normal Oil Color

In addition to knowing the causes of engine oil turning milky white, another thing to know is the normal color of oil. Basically, normal oil will have a certain color that has been designed by each oil manufacturer. 

Generally, this oil color tends to look shiny, like the color of unused cooking oil. The color will appear thick and clear. However, when the color has changed to brownish or even black, you are advised to replace it.

This is similar to vehicle oil; when the vehicle oil has changed to black or brown, it indicates that the oil needs to be replaced immediately so that the engine can be lubricated optimally. 

The Meaning of Each Car Oil Color 

Each color of car oil indicates the condition of the vehicle. Here are the meanings of each vehicle oil color:

1. Clear Yellow

Oil that has a clear yellow color indicates that its quality is still good. Oil with a clear yellow color means it can still function well to lubricate the engine. 

2. Brownish Yellow

What causes engine oil to be brown? When the oil color has changed to brownish yellow, technicians will immediately know that your car oil has just been replaced. 

Read Also: A Series of Myths and Facts About Changing Car Oil That You Need to Know

3. Regular Black

If the oil starts to change color to black, the car is estimated to have traveled up to 5000 kilometers. The change in oil color to black can be considered normal, especially if the vehicle is frequently used. 

4. Thick Black

The change in oil color to thick black is a sign that something is wrong with the car engine you have. 

After knowing the causes of engine oil turning milky white, make sure you take good care of your vehicle.

In addition, perform regular vehicle maintenance at the official Daihatsu workshop. For regular service, you do not need to wait long; you can book service online.

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