1. Park the car on a level surface and turn off the engine. Wait a few minutes to allow the oil to settle back into the oil pan.
2. Locate the oil dipstick. This is usually a brightly colored handle located near the top of the engine. It may be marked with "Oil" or "Engine Oil."
3. Pull the dipstick out and wipe it clean with a clean paper towel or cloth.
4. Reinsert the dipstick all the way back into its tube.
5. Pull the dipstick out again and check the oil level. The oil should be between the two marks on the dipstick, which indicate the "full" and "add" levels. If the oil level is low, you need to add oil.
6. If necessary, add oil to the engine. Use the type of oil specified in your car's owner's manual. Add oil slowly and in small increments, checking the oil level frequently as you add it.
7. Reinsert the dipstick and make sure the oil level is correct.
8. Replace the oil cap and start the engine. Let the engine run for a few minutes, then turn it off and recheck the oil level to make sure it is correct.
It's important to check the oil level in your car regularly, especially before long trips or heavy usage. Low oil levels can cause engine damage, while overfilling the oil can also cause problems. If you have any questions about checking the oil in your car, consult your owner's manual or a qualified mechanic.
