Tips Sahabat

How to Effectively Clean Engine Oil Deposits in Cars

10 April 2025
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The performance produced by the car depends on the condition of the engine. Therefore, car owners must regularly clean the car engine. However, cleaning it is not as easy as it seems. This is because there is engine oil sludge that sticks and cannot be cleaned just by pouring water and soap like cleaning the car body. So, what is an effective way to clean that sludge?

Effective Ways to Clean Engine Oil Sludge

There are several ways you need to know when you want to clean the oil sludge in the car engine. Here are the steps.

1. Avoid sunlight

The first step, you need to move the car that you will clean the engine from exposure to sunlight. This is necessary to prevent the sun's heat from affecting the components of the car made of plastic and rubber. Because these components can easily expand and become brittle when exposed to sunlight.

2. Prepare cleaning tools

The second step, you need to prepare all the tools to help you when you want to clean the car engine. Starting from microfiber cloth, toothbrush, sponge, to special cleaners like engine conditioner. This cleaner functions to produce foam that helps the process of cleaning the oil sludge in the engine become easier. 

In addition to engine conditioner, you need to use engine flush to clean stubborn engine oil sludge. The use of engine flush is usually done before you carry out the engine cleaning process. Specifically, you sprinkle this engine flush on the engine part before the car engine is warmed up. The form of engine flush itself is similar to detergent.

The way to use engine flush is very easy, which is to insert this cleaner into the oil hole of the engine that has not been changed. Then turn on the engine for 15 minutes. Make sure the gas position is stationary with an RPM of 2000. 

3. Warm up the car engine first

The third step, you need to warm up the car engine for about 15-20 minutes so that the stains on the car engine are easy to clean. 

4. Remove the battery part

The fourth step, you need to remove the car battery before cleaning the engine. This is to avoid electrical short circuits when you spray the engine with water. Don't forget to wrap the electronic components attached to the engine with waterproof materials like plastic or aluminum foil. 

5. Clean the car engine parts

The fifth step is to clean the car engine parts. Here are the complete steps.

  • Spray engine conditioner on the oil sludge part of the engine and then gently scrub with a toothbrush until clean. 
  • Use engine degreaser if the engine conditioner is not able to clean the car engine well. Spray the engine compartment with engine degreaser and then scrub with a toothbrush gently. Then rinse with soapy water, and scrub again until clean.
  • If the stains and oil sludge have faded, rinse again with running water.
  • Then dry the engine compartment with a microfiber cloth.

In addition to the special cleaners above, engine oil sludge in the car can also be cleaned with hot water, gasoline, alcohol, and kerosene.

6. Reinstall the battery

The sixth step, you need to reinstall the battery part that you have removed. 

7. Start the engine

The last step, if the battery is properly installed. You need to start the engine to test the engine condition.

Read Also : Causes of Carbon Sludge in the Combustion Chamber

Thus, some ways you can do when you want to clean the oil sludge in the car engine. Besides the methods above, you can ask for help from a skilled mechanic in cleaning the engine by visiting the nearest official Daihatsu workshop. 

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