The first thing you need to do is to check your owners manual for what type of oil to use, and how much. You should usually buy one more quart than you need, to help flush the old oil out.
Step 1: Jack up the engine end of your car, so you can easily get under the engine. Make sure that the car is secure before going under it.
Step 2: Next, you will be looking for the oil plug. It is under the engine, usually under the oil pan, there should be some kind of large bolt. The bolt should stand out.
Step 3: Get a large tub or bowl, and place it under the oil plug.
Step 4: Remove the plug, and let the oil drain out. This may take a few minutes, depending on oil temperature, and age.
Step 5: If you like, you can replace the oil filter at this time. Just unscrew it from the engine, and empty out all of the oil in it. Replace the filter with a new one.
Step 6: Replace the plug, and open the hood.
Step 7: Find the oil filler cap, get a funnel, and pour a quart of oil into the engine. After you do this, remove the plug, and drain that oil. This will help to clean out all of the old oil. after all of the oil is out, replace the plug.
Step 8: Go back under the hood, and start filling the engine back up with oil. Make sure to constantly check the dipstick to make sure you don't over-fill the engine.
Step 9: After you fill your car up with the right amount of oil, replace the caps, and lower your car.
Congratulations! You just changed your oil.

