What Is Car Engine Flush? This Is Its Function & How to Use It

When you are changing your car engine oil at the workshop because the color and texture of the oil have thickened (oil sludge). You have probably been advised to use engine flush by the technician. So do you understand what engine flush is? How to use it? Here is a complete review. 

What is Engine Flush?

Engine flush in cars is a chemical liquid that functions as a cleaner that is claimed to effectively clean stubborn dirt and oil sludge in the vehicle's engine. In addition, engine flush also has other functions as follows.

Functions of Engine Flush

What are the functions of this engine flush? Here are the 7 main functions of engine flush:

1. Accelerates the engine lubrication process.
2. Removes dirt deposits in the engine, thereby improving engine performance while driving.
3. Makes the engine sound smoother.
4. Can extend the engine's lifespan (more durable).
5. Smoothens piston performance, so engine compression is maintained.
6. Can thoroughly clean carbon and sludge (piston rings).
7. Maintains and improves the performance of several vehicle components, especially in the engine combustion system.

Read Also: Understanding Engine Mounting: From Function to How to Replace It

Mechanism of Engine Flush Work

The working mechanism of engine flush in cars is actually like laundry detergent used to lift all stains and stubborn dirt stuck to clothes. However, the difference is that this liquid is used to clean all kinds of stubborn dirt and oil sludge inside the car engine. 

How to Use Engine Flush

Here are the steps on how to properly use engine flush:

1. Before you perform the process of replacing the old engine oil, first pour the engine flush liquid into the oil filling hole.
2. Then start the car, wait for about 5 to 10 minutes. This is done so that the engine flush liquid spreads evenly into the oil filling hole. Thus, the liquid works optimally to dissolve the stubborn oil sludge and lift all types of dirt stuck to the car engine.
3. Next, turn off the engine.
4. Let the engine sit for five minutes.
5. After that, open the oil filling cap again. Perform the draining process of the old oil that has mixed with dirt and sludge that has come off due to the engine flush.
6. Drain until clean, until there are no more oil drips. After it is clean, close the oil filling part again. Let it sit for a while.
7. Then open the oil filling cap again and pour in new oil.

That is how to properly use engine flush. Come on, try practicing it now!

Read Also: 3 Types of Car Engine Cleaning Liquids and Their Functions You Must Know

Tips for Choosing Good and Proper Engine Flush

Are you interested in using it? If you are interested, pay attention to some tips for choosing a good and best engine flush.

1. Pay Attention to the Packaging

Usually, a good engine flush is packaged in plastic material. However, if the packaging is made of tin, the acid content may be too high, making it less suitable for use. 

2. Pay Attention to the Smell

When you first open the engine flush packaging, pay attention to the smell you detect. If it smells pungent like diesel, then the engine flush can be assured to have a very high acid content.

3. Always Use a pH Tester

To ensure that the use of engine flush does not cause problems when used, it is advisable to always test the engine flush with a pH tester. You can use pH paper to test the acidity level. Make sure the engine flush you buy has a pH level of 6 to 8. 

Although engine flush can help you clean dirt stuck in the car engine well, you must use this liquid according to the rules and the right amount. The danger of using engine flush improperly can cause problems such as excessive steam coming from the car engine, leaks in the combustion chamber, and even damaging the car engine seals. 

If you have never used it, consult an expert technician or visit the nearest official workshop or Daihatsu dealer to assist you.