2019 Kia Optima 2.4 Engine Oil Capacity

Engine Oil Maintenance for Your 2019 Kia Optima


Owning a Kia Optima is all about enjoying the journey and making sure your engine is running smoothly is crucial for a satisfactory experience. Regular engine oil changes are necessary to maintain your vehicle’s performance and longevity. The good news is that you can save money by performing oil changes at home. In this article, we will guide you on how to change the engine oil in your 2019 Kia Optima 2.4, while also providing essential information about oil capacity and type.

2019 Kia Optima 2.4 Engine Oil Capacity

Your 2019 Kia Optima with a 2.4-liter engine requires 4.3 quarts (or 4.0 liters) of engine oil. It’s important to note that engine oil capacity is not the same as the engine’s displacement. The 2.4 liters of space the engine occupies under the hood is unrelated to the amount of oil it needs to operate efficiently. Therefore, it’s crucial to use the correct quantity of oil specified by the manufacturer.

Choosing the Right Engine Oil

To ensure optimal performance, your 2019 Kia Optima 2.4 requires premium grade 5W-20 engine oil. The numbers in the oil grade indicate the oil’s viscosity, which is its thickness at different temperatures. A viscosity of 5 and 20 means the oil remains relatively thin, providing excellent lubrication even in cold weather conditions. The “W” stands for winter. Alternatively, you can choose a high-quality synthetic oil blend that meets the same requirements as the recommended oil.

How Often to Change Oil on a 2019 Kia Optima 2.4

Kia recommends changing the engine oil every 3,000 to 5,000 miles for conventional oil and every 7,500 to 10,000 miles for synthetic oil. However, it’s essential to assess your oil’s condition regularly and consider additional factors like driving conditions and vehicle age. Signs that indicate the need for an oil change include dark brown or black oil, coarse or gritty texture, strange engine noises, unpleasant odors, and changes in vehicle performance.

Steps to Change Your Engine Oil and Filter

Changing your engine oil and filter is a straightforward process that you can do at home. Here’s a step-by-step guide:

1. Allow the engine to warm up by running your vehicle for a few minutes.
2. Turn off the engine, open the hood, and follow these steps:
a. Remove the oil fill cap.
b. Use a socket wrench to remove the oil drain bolt and washer, located underneath the engine.
c. Let the old engine oil drain into a drain pan.
d. While the oil is draining, remove the old oil filter using a filter wrench.
e. Install a new oil filter.
f. Replace the oil drain bolt with a new washer.
g. Refill the engine with 4.3 quarts of fresh 5W-20 motor oil and replace the fill cap.
h. Start the engine for about 30 seconds to allow the fresh oil to circulate.

Remember to dispose of the old engine oil in a sealed container and take it to a local recycling center for proper disposal. It is crucial not to dump oil in the garbage or on the ground.


1. How can I determine if I’m due for an oil change?

Some indicators that you may need an oil change include dark brown or black oil, a coarse or gritty texture, strange noises from the engine, unpleasant odors, and changes in your vehicle’s performance.

2. Can I use synthetic oil in my 2019 Kia Optima 2.4?

Yes, you can opt for a high-quality synthetic oil blend that meets the manufacturer’s specifications. Look for a synthetic oil blend that matches the recommended 5W-20 viscosity.

3. How often should I change the engine oil in my Kia Optima?

For conventional oil, it is recommended to change the oil every 3,000 to 5,000 miles. For synthetic oil, you can extend the intervals to every 7,500 to 10,000 miles. However, consider factors like driving conditions and vehicle age when determining the frequency of oil changes.

4. Can I change the engine oil in my Kia Optima at home?

Yes, you can change the engine oil and filter at home with the right tools and materials. Just make sure to follow the steps outlined in the article and dispose of the old oil properly.

5. What should I do if I encounter difficulties during the oil change process?

If you experience any difficulties during the oil change process, consult your owner’s manual for model-specific instructions. The manual will provide detailed guidance on how to change the oil in your 2019 Kia Optima 2.4.

6. Is it necessary to warm up the engine before changing the oil?

Warming up the engine before an oil change helps the oil drain more easily, making the process more efficient. Running the vehicle until it reaches normal operating temperature, but no longer than five minutes, is sufficient.

By following these guidelines, you can ensure that your 2019 Kia Optima 2.4 remains in excellent condition with regular engine oil changes. Stay proactive in maintaining your vehicle to enjoy a smooth and hassle-free driving experience.

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OilChanged Staff


Hi, my name is Yiğit AKSÜT and I am a car mechanicer. I have always been fascinated by cars and how they work, and I knew from a young age that I wanted to make a career out of working on them. After completing my education and training, I began working as a mechanic and have been doing so for several years now.I have a strong passion for cars and love the challenge of diagnosing and fixing problems. I take pride in my work and always strive to do the best job possible for my clients. In my free time, I enjoy tinkering with cars and learning about new technologies and techniques in the automotive industry.

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