You can change your own oil in about 30 minutes with basic tools

An oil change means draining the old oil from your engine, replacing the oil filter, and adding fresh oil. You do not need a mechanic to do this — most homeowners can handle it with a socket wrench, an oil filter wrench, an oil drain pan, and new oil and a filter that match your car's specifications. The whole job takes between 20 and 40 minutes depending on how accessible your drain plug is.

Before you start, check your owner's manual or a parts retailer's website for the exact oil type, oil capacity, and filter part number your car needs. These details matter: using the wrong viscosity or overfilling can damage your engine. You will also need to know whether your car has an oil drain plug (most do) or uses a cartridge-style filter that drains from above.

Key Takeaways

  • You need the correct oil type and capacity for your specific car — check your owner's manual or ask at an auto parts store before you buy anything.
  • Warm up your engine for two to three minutes before draining so the oil flows faster, then let it cool for five minutes so you do not burn yourself.
  • The oil filter wrench is essential because hand-tightening alone will not remove a filter that has been sitting for months.
  • Overfilling oil is as harmful as underfilling — use the dipstick or electronic gauge to check the level after you pour, and stop when it reaches the full mark.
  • Most places that sell oil will take your old oil and filter for free, so do not pour it down the drain or throw it in the trash.

Gather your materials and locate the drain plug

You will need an oil drain pan (a shallow metal or plastic tray that holds at least five quarts), a socket wrench or box wrench that fits your drain plug, an oil filter wrench, a new oil filter, and the correct oil for your car. A jack and jack stands make the job easier if your car sits low, but many people do it without lifting the vehicle at all — just get as far under as you can reach.

Locate your drain plug by looking underneath the engine toward the front or side. It is a bolt roughly the size of a dime head, usually with a hex head. If you cannot find it, check your owner's manual or search online for your car's year, make, and model plus "oil drain plug location." The oil filter is typically mounted on the side or top of the engine and looks like a metal cylinder about the size of a soda can.

Warm the engine and drain the old oil

Start your car and let it idle for two to three minutes. Warm oil flows faster than cold oil, so this step cuts your drain time in half. Turn off the engine and wait five minutes — the oil will still be warm enough to flow freely, but cool enough that you will not burn your hands.

Place your drain pan under the drain plug. Using your wrench, turn the plug counterclockwise until it is loose enough to unscrew by hand. Finish unscrewing it by hand, but be ready — the last bit of oil may still be warm. Let the pan catch all the oil. This usually takes five to ten minutes. Once the flow slows to a drip, wipe the drain plug clean with a rag and set it aside.

Replace the oil filter

Position your drain pan under the filter. Use your oil filter wrench to turn the filter counterclockwise until it is loose, then unscrew it by hand. Oil will spill, so let it drain into the pan for a minute or two. Wipe the filter mounting surface on the engine clean with a rag.

Open your new filter and look inside the rubber gasket (the ring around the top). Coat this gasket lightly with fresh oil from your new oil container — just a thin layer on your fingertip, rubbed around the gasket. This helps the seal and makes removal easier next time. Screw the new filter on by hand until the gasket touches the engine, then turn it another three-quarters of a turn. Do not use the wrench to tighten it — hand-tight is correct.

Reinstall the drain plug and add new oil

Screw the drain plug back in by hand first, then use your wrench to tighten it. Do not over-tighten — snug is enough. If your drain plug has a crush washer (a soft metal ring), replace it with a new one each time you change oil; if it does not, you can reuse the same plug.

Locate your oil filler cap on top of the engine — it usually has an oil can symbol on it. Unscrew it and set it aside. Pour in the amount of oil your manual specifies, usually between four and six quarts depending on your car. Pour slowly and pause halfway through to let the oil settle into the pan.

Check the level and run the engine

Replace the oil filler cap. Start your engine and let it run for 30 seconds to a minute. This circulates the new oil and fills the new filter. Turn off the engine and wait two minutes for the oil to settle back into the pan.

Pull out the dipstick (a long thin rod with markings on it), wipe it clean on a rag, reinsert it all the way, then pull it out again. The oil should reach the full mark. If it is low, add a little more oil and check again. If you overfilled it, you will need to drain some out — use a turkey baster or siphon to remove the excess. Once the level is correct, replace the dipstick and you are done.

Dispose of old oil properly

Do not pour old oil down the drain, into the ground, or into the trash. Most auto parts stores, quick-lube shops, and municipal hazardous waste facilities will take used oil and filters for free. Some will even take oil if you did not buy anything from them. Call ahead or check their website to confirm they accept it.

If you have no local option, contact your city or county public works department — they can direct you to a disposal site. Keeping old oil out of the water supply protects groundwater and is required by law in most places.

Frequently Asked Questions

How often should I change my oil?

Check your owner's manual — newer cars often go 7,500 to 10,000 miles between changes, while older cars may need a change every 3,000 to 5,000 miles. Some cars use synthetic oil, which lasts longer than conventional oil. Your manual will tell you which type your engine needs.

What if I spill oil on my driveway?

Wipe up what you can with rags or paper towels. For the stain, sprinkle cat litter or an absorbent powder on the spot, let it sit for a few hours, then sweep it up. For stubborn stains, a degreaser made for concrete can help, but test it on a small area first.

Can I change the oil without jacking up the car?

Yes, if you can fit under it. Many people do the job from ground level by lying on their back or using a creeper (a low wheeled platform). If your car sits very low or your driveway is uneven, a jack and jack stands make it safer and easier — but never rely on a jack alone; always use stands.

What happens if I use the wrong oil type?

Using oil with the wrong viscosity (thickness) can reduce fuel economy, cause the engine to run hotter, or make cold starts harder. Overfilling or underfilling can damage the engine or trigger warning lights. Always match your manual's specifications exactly.

Do I need to replace the drain plug every time?

No, unless it has a crush washer (a soft metal ring that seals it). If it does, replace the washer each time. If it does not, you can reuse the same plug for many oil changes. Wipe it clean and inspect it for cracks or damage before reinstalling.