Flushing Engine Oil: A Simple Guide to Getting Rid of Water and Boosting Performance

Have you ever opened your car engine oil dipstick and found water drops instead of the usual amber-colored fluid?

Worry not!

In this article, we’ll guide you through the process of flushing engine oil that has water in it.

First, let’s understand why water gets into engine oil. Engines cool down with a mixture of coolant and water. However, when there’s a coolant leak, some water may mix with your engine oil (1).

Now, how do we get rid of this unwelcome intruder?

Follow these steps:

  1. Drain the Old Oil: Using an oil pan or a drain plug, remove the old oil from your engine. Make sure to dispose of it properly.

  2. Replace the Filter: A contaminated filter can cause more harm than good. Replace it with a new one.

  3. Refill With New Oil: Use high-quality oil that suits your car’s make and model. Fill up the engine to its proper level.

  4. Check for Leaks: Water in the oil could indicate coolant leaks. Inspect hoses, gaskets, and seals for any signs of leakage.

  5. Change Coolant: Contaminated coolant can cause similar problems. Drain and replace it as well (2).

According to MechanicBase, "Flushing your engine oil regularly is essential to maintain optimal performance and prevent costly repairs" (3).

Consider this: A little water in the engine oil may not seem like a big deal, but it can lead to significant damage over time. Don’t let a small issue escalate into a larger problem. Regularly check your engine oil and follow these steps when needed.


(1) "Water in Engine Oil: Causes & Solutions," Mechanic Base, 2021.
(2) "How to Drain an Engine and Change the Oil," RepairPal, 2021.
(3) "Engine Flush vs. Oil Change," Mechanic Base, 2021.

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