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How do you refill car motor oil need to flush the existing before adding more oil?

You do not need to flush your engine before adding new oil. In fact, flushing can wash away beneficial additives that protect your engine.

To change your engine oil, follow these steps:

1. Gather your materials:

* New oil filter (check your owner's manual for the correct size)

* New oil (check your owner's manual for the correct type and amount)

* Oil drain pan

* Funnel

* Wrench

* Rags

2. Prepare your car:

* Park your car on a level surface.

* Turn off the engine and allow it to cool down.

* Engage the parking brake.

3. Locate the oil drain plug:

* The oil drain plug is typically located on the bottom of the oil pan.

* It is usually a 17mm bolt.

4. Place the oil drain pan under the oil drain plug:

* Make sure the pan is large enough to catch all of the oil that will drain out.

5. Loosen the oil drain plug:

* Use the wrench to loosen the oil drain plug.

* Be careful not to drop the bolt into the oil pan.

6. Allow the oil to drain:

* Allow all of the oil to drain out of the oil pan.

* This may take a few minutes.

7. Replace the oil drain plug:

* Once all of the oil has drained out, replace the oil drain plug.

* Tighten the plug until it is snug.

8. Remove the old oil filter:

* Use the wrench to loosen the oil filter.

* Be careful not to spill any oil.

9. Apply a thin coat of new oil to the gasket of the new oil filter:

* This will help to create a seal and prevent leaks.

10. Install the new oil filter:

* Screw the new oil filter onto the oil filter adapter.

* Tighten the filter until it is snug.

11. Add new oil to the engine:

* Use the funnel to add new oil to the engine.

* Add the amount of oil specified in your owner's manual.

12. Check the oil level:

* Use the dipstick to check the oil level.

* The oil level should be between the "full" and "add" marks on the dipstick.

13. Start the engine and let it run for a few minutes:

* This will circulate the new oil throughout the engine.

14. Check for leaks:

* Look under the car for any leaks.

* If you see any leaks, tighten the oil drain plug or oil filter until the leak stops.