When and why to change a car's oil filter?

¿Cuándo y por qué cambiar el filtro de aceite de un coche?

In this article, we will answer all your questions about when and why to change a car's oil filter, as well as how it works and how to change it. We will also provide you with information on how often to change the oil and filter in a car.

Why is it important to change the oil filter?

The oil filter is an essential part of a car's lubrication system. Its main function is to remove impurities and particles that accumulate in engine oil as it wears. If not changed regularly, the oil filter can become clogged and not perform its job properly, which can lead to premature engine wear and costly damage.

When should the oil filter be changed?

The frequency with which the oil filter should be changed depends on several factors, such as the type of oil used, the driving conditions and the model of the car. In general, it is recommended to change the oil filter every time you perform an oil change, which is usually every 5.000 to 10.000 kilometers or every 6 months, whichever comes first. However, it's important to check your car's owner's manual for specific manufacturer recommendations.

How do you change the oil filter?

Changing a car's oil filter is a relatively simple process, but it's important to follow the correct steps to ensure a proper change. Here we show you the basic steps to change the oil filter:

Step 1: Gather the necessary materials

Before you begin, make sure you have the following supplies on hand: a new oil filter, an oil filter wrench, a container to catch used oil, protective gloves, and a clean rag.

Step 2: Locate the oil filter

The oil filter is usually located at the bottom of the engine, near the oil pan. It may be covered by a plastic or metal casing, so you may need to remove it to access the filter.

Step 3: Drain the used oil

Before removing the oil filter, it is important to drain the used oil from the engine. To do this, place the container under the oil pan drain plug and loosen the plug with a wrench. Once the oil has completely drained, replace the drain plug.

Step 4: Remove the oil filter

Use the oil filter wrench to loosen and remove the old oil filter. Be careful not to spill any oil during this process, and make sure the filter is completely empty before disposing of it.

Step 5: Install the new oil filter

Before installing the new oil filter, apply a small amount of clean oil to the rubber seal on the filter. This will help the filter to seal properly. Then, screw the new oil filter into place, making sure not to over-tighten it.

Step 6: Fill the engine with new oil

Once the new oil filter is installed, remove the oil filler cap on top of the engine and pour in the recommended amount of new oil. Make sure you use the correct type and viscosity of oil for your car.

Step 7: Check the oil level

After filling the engine with fresh oil, check the oil level using the dipstick. Add more oil if necessary to reach the proper level.

Frequently Asked Questions (FAQs)

1. How long does it take to change the oil filter?

The time required to change the oil filter can vary depending on the experience of the mechanic and the model of the car. In general, the process can take between 15 and 30 minutes.

2. Can I change the oil filter myself?

Yes, changing the oil filter is a task that you can do yourself if you have the right knowledge and tools. However, if you don't feel comfortable doing it, it is always advisable to go to a professional mechanic.

3. What happens if I don't change the oil filter?

If you don't change the oil filter regularly, it can become clogged and not properly filter impurities from the oil. This can cause premature engine wear, decreased performance, and costly damage.


The regular change of the oil filter is essential to keep the engine of your car in good condition. By following the proper steps and changing your oil filter every time you perform an oil change, you can ensure that your lubrication system is working properly and extend the life of your engine. Remember to always consult your car's owner's manual for specific manufacturer recommendations.

We hope this article has been useful and has answered all your questions about changing an oil filter. If you have any other questions or comments, feel free to leave them below. We will be happy to help you!

Until next time!

The Pistonudos.com team

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