When it comes to do-it-yourself projects, the first step is always to gather your materials. Changing your oil is no different. You should start by checking your car's owner's manual to see how much oil is needed for your car, what type, and exactly what filter to purchase as the replacement. You will need: a new filter, fresh oil, an oil catch (preferably with a screen), a funnel, a filter wrench, a clean rag, and an open-ended wrench.
Step One: Drain the old oil. Begin by carefully positioning the filter catch under the drain plug. Open the oil filter cap on the top of the engine, this will allow for easier draining. Loosen the drain plug with a wrench and let all of the oil drain out of the engine.
Step Two: Remove the old filter. This is where things get a little tricky since you normally cannot access the filter unless you climb under the car. Using the oil filter wrench, slowly turn the filter counterclockwise until it comes free. Be careful since it is still full of oil and can be pretty messy. Make sure you remove the filter's gasket as well, otherwise the new filter will not seal properly.
Step Three: Attach the new oil filter. You want to begin by lubricating the gasket on the new filter. It seems silly to make something dirty when it is so clean and new, but that is the best way to make it seal properly. Then fill the filter about 2/3 of the way with oil. Carefully screw it in to place with your hands. If you use a wrench you might inadvertently over tighten it, which can lead to leaks, so using your hands is best.
Step Four: Fill the engine with oil. You want to start by only filling it about � as full as the owner's manual says. This will leave room to account for any oil that might still be left in the engine. Check the level with the oil stick and continue filling it until it reaches the appropriate amount.
Finally, make sure you reattach the drain plug and the oil cap! Oil splashes and leaks can lead to dangerous fires, so make sure everything goes back into place.
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