You can change your own oil if you have basic tools, a safe place to work, and time to do it right—but the job involves hot fluid, tight spaces, and a disposal problem most people underestimate.

A DIY oil change costs between $25 and $50 in materials (oil, filter, drain plug gasket if needed) versus $50 to $150 at a shop, so the math works if you do it more than once. The real trade-off is time—plan 45 minutes to an hour your first time, 20 to 30 minutes after you know your car—and the fact that you become responsible for disposing of the old oil safely. Most auto parts stores will take used oil for free, but you have to get it there in a sealed container.

This guide walks you through the actual steps, the tools you'll need, and the specific moments where most DIYers run into trouble. It also covers when a shop visit makes more sense than doing it yourself.

Key Takeaways

  • You need an oil drain pan, wrench or socket set, oil filter wrench, jack and jack stands (or ramps), and new oil and filter matched to your car's manual—not guesses from a parts store employee.
  • The engine must be warm but not hot when you drain it; cold oil drains slowly, and oil hot enough to burn your skin defeats the purpose of doing this yourself.
  • The old oil must go into a sealed container and be taken to an auto parts store, municipality hazardous waste site, or quick-lube shop that accepts it—pouring it down a drain or into soil is illegal in most places.
  • If your car has a cartridge-style filter (plastic housing on top of the engine) instead of a spin-on filter (threaded can underneath), the job is messier and requires a special wrench you may not own.
  • Stripped drain plugs, over-tightened filters, and getting under a car on an unstable jack are the three ways this job goes wrong; all are preventable with the right approach.

What You Actually Need Before You Start

Check your owner's manual for three pieces of information before you buy anything: the oil capacity (usually 4 to 8 quarts), the viscosity grade (such as 5W-30 or 10W-40), and the filter part number. Do not ask a parts store employee to guess—they will often be wrong, and using the wrong oil can affect your engine's performance and warranty. Write down the exact numbers and bring them with you.

The tools list is short but non-negotiable. You need an oil drain pan (a low, wide plastic tray, $5 to $15), a wrench or socket that fits your drain plug (usually 13mm, 14mm, or 15mm), an oil filter wrench ($8 to $20 depending on type), and a way to safely raise the car. A floor jack and a pair of jack stands are the standard approach; ramps are safer if you have them and your driveway is level. Never work under a car supported only by a jack. You will also need old towels or shop rags, a funnel, and a sealed container for the old oil (an empty oil jug works).

If your car has a cartridge-style filter (a plastic housing, usually on top of the engine), you need a cartridge filter wrench, which is different from a spin-on filter wrench and costs $15 to $30. If you are not sure which type you have, look at your engine before you buy tools—a spin-on filter looks like a metal can with a threaded base, and a cartridge filter looks like a plastic cap with a center bolt.

Warming the Engine and Raising the Car Safely

Start the engine and let it idle for two to three minutes, then turn it off. You want the oil warm enough to flow freely but not so hot that it burns your skin or the engine parts burn you. This takes about five minutes after you shut it off. While you wait, position your jack and jack stands. Place the jack under a reinforced point on the frame (your manual shows where), raise the car until there is clearance to work underneath, then lower it onto the jack stands. Never rely on the jack alone.

If you are using ramps instead, drive slowly onto them so the front wheels are centered, then set the parking brake and put the car in gear (or Park if automatic). Ramps are more stable than a jack, but they only work if your driveway is level and you have enough clearance to slide under the car.

Draining the Old Oil and Removing the Filter

Slide under the car and locate the drain plug on the bottom of the oil pan—it is a bolt sticking down from the pan. Place your drain pan directly underneath it, then use your wrench to turn the plug counterclockwise. Once it is loose enough to turn by hand, unscrew it the rest of the way and set it aside on a rag. The oil will pour out; let it drain for five to ten minutes. If the oil is still dripping steadily after that, wait a bit longer—you want to get as much out as possible.

While the oil drains, move to the oil filter. If it is a spin-on filter (the metal can), use your filter wrench to turn it counterclockwise until it comes free, then unscrew it by hand. Expect oil to spill from the filter itself—that is normal. If it is a cartridge filter (plastic housing on top), use the cartridge wrench to remove the center bolt, then lift off the housing and pull out the filter element inside. Either way, wipe the filter mounting surface clean with a rag.

Installing the New Filter and Refilling Oil

For a spin-on filter, coat the rubber gasket (the ring on the new filter) lightly with fresh oil, then screw the 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, and over-tightening makes it nearly impossible to remove next time. For a cartridge filter, insert the new filter element into the housing, then reinstall the housing and tighten the center bolt by hand until it is snug; do not crank it.

Lower the car back to the ground (if using a jack, lower it onto the ground before removing the jack stands). Locate the oil filler cap on top of the engine, unscrew it, and place your funnel in the opening. Pour in the new oil slowly—check your manual for the exact amount, but most cars take 4 to 6 quarts. Pour in about three-quarters of the amount, then wait a minute for it to settle into the pan.

Checking the Level and Disposing of Old Oil

Start the engine and let it run for 30 seconds, then turn it off and wait two minutes. Pull out the dipstick (a long rod with a handle, usually yellow or orange), wipe it clean on a rag, reinsert it fully, then pull it out again and read the level. The oil should be between the minimum and maximum marks. If it is low, add a little more and check again. Do not overfill—too much oil can damage the engine.

Now you have a container of old oil that must be disposed of properly. Take it to an auto parts store (most accept it free), a municipal hazardous waste collection site, or a quick-lube shop. Do not pour it down a drain, into soil, or into the trash. Pouring used oil into the environment is illegal in most places and contaminates groundwater.

When a Shop Visit Makes More Sense

Skip the DIY approach if your drain plug is stripped (the bolt spins but will not tighten), if you do not have a safe way to raise the car, or if you cannot find a legal place to dispose of the old oil. A stripped drain plug requires a new pan or a repair that a shop can handle in 30 minutes; doing it yourself means buying a new pan ($100 to $300) and dealing with a leak. If your driveway is sloped, narrow, or you live in an apartment, a shop is safer and faster. The same goes if the nearest hazardous waste site is more than 20 minutes away—the time and gas cost eat into your savings.

Some cars also have cartridge filters in tight spots where a wrench does not fit easily, or drain plugs in locations that require removing other parts first. Your manual or a quick search for your car's year and model will tell you if this applies. When in doubt, one shop visit costs $50 to $150 and takes 30 minutes; a DIY mistake can cost thousands.

Frequently Asked Questions

What if I spill oil on my driveway?

Fresh oil can be cleaned up with kitty litter, baking soda, or a commercial absorbent—spread it over the spill, let it sit for 15 minutes, then sweep it up. Used oil is harder to remove and may require a degreaser. Prevent spills by using a drain pan large enough to catch everything and positioning it carefully before you loosen the plug.

Can I change my oil in the winter if it is very cold?

Yes, but cold oil flows slowly, so let the engine warm up longer and be patient while it drains. Cold oil is thicker and takes 10 to 15 minutes to drain fully instead of 5 to 10. Do not try to speed it up by heating the oil further—warm, not hot, is the target.

How often should I change my oil?

Check your owner's manual; most modern cars go 5,000 to 10,000 miles between changes, though some synthetic oils last 15,000 miles. Older cars and those driven in stop-and-go traffic may need changes every 3,000 to 5,000 miles. Your manual is the only source that matters for your specific car.

What do I do if the drain plug will not come loose?

explore penetrating oil (like WD-40) around the plug and wait 15 minutes, then try again with a wrench that fits snugly. If it still will not budge, stop—forcing it risks stripping the bolt or the pan. A shop can remove a stuck plug without damaging the pan.

Is synthetic oil worth the extra cost for a DIY change?

Synthetic oil costs two to three times more per quart but lasts longer between changes, so the per-mile cost is often similar to conventional oil. If your manual allows synthetic and you plan to do oil changes yourself, it reduces how often you have to do the job. If you take your car to a shop, the savings are smaller because labor is the bigger cost.