Oil replacement is a maintenance task you can do yourself with basic tools, or you can have a mechanic do it at a service center
An oil change means draining the old oil from your engine, replacing the oil filter, and adding fresh oil. Most cars need this done every 3,000 to 10,000 miles, depending on your vehicle and the type of oil you use — your owner's manual will specify the interval for your model. Doing it yourself costs the price of oil and a filter (usually $20 to $50 total). A service center typically charges $30 to $75 for labor plus the cost of materials.
The process takes 30 minutes to an hour if you do it at home, or 45 minutes to an hour and a half at a shop if they are not backed up. You will need access to the underside of your car, either a driveway with clearance or a lift, and basic hand tools — a wrench, an oil filter wrench, and a drain pan. If you have never done this before, watching a video specific to your car model first will show you exactly where things are located.
Key Takeaways
- Oil changes are due every 3,000 to 10,000 miles depending on your vehicle type and oil grade — check your owner's manual for the exact interval.
- You will need to know your car's oil capacity and the correct oil type and filter part number before you buy supplies.
- The job requires draining old oil into a pan, removing and replacing the filter, and adding new oil, then checking the level with the dipstick.
- Used oil must be disposed of properly at a recycling center, auto parts store, or service station — never pour it down a drain.
- A service center handles the whole process but costs more; doing it yourself saves money if you have the space and tools.
Gather the right oil type and filter for your vehicle
Before you start, you need three pieces of information from your owner's manual: the oil capacity (how many quarts or liters your engine holds), the oil viscosity grade (usually something like 5W-30 or 10W-40), and the oil filter part number. Write these down or take a photo of the page.
Go to an auto parts store with this information and buy a jug of oil in the correct grade, enough to fill your engine, plus one oil filter. The staff can look up the filter by your vehicle's year, make, and model if you do not have the part number. Buy a drain pan if you do not already own one — a shallow metal or plastic pan that holds at least as much liquid as your oil capacity.
Prepare your car and locate the drain plug
Park on level ground and let the engine cool for at least five minutes if you have been driving — hot oil can burn you. Engage the parking brake and, if you are comfortable doing so, place wheel chocks behind the rear wheels for safety.
Raise the car using a jack if you need clearance to reach underneath, or work in a driveway if your car sits high enough. Locate the oil drain plug on the bottom of the engine — it is a bolt sticking down from the oil pan. Consult your owner's manual or a video for your specific model if you cannot find it. Place your drain pan directly underneath the plug.
Drain the old oil and replace the filter
Using a wrench that fits the drain plug, turn it counterclockwise to loosen it. Once it is loose enough, carefully unscrew it by hand — oil may still be warm. Let the oil drain completely into the pan; this takes five to ten minutes. Once the flow slows to a drip, wipe the drain plug clean with a rag and screw it back in by hand, then tighten it with the wrench. Do not over-tighten; snug is enough.
Locate the oil filter, which is a cylindrical canister usually mounted on the side of the engine. Use an oil filter wrench to turn it counterclockwise until it comes free, then unscrew it by hand. Drain any remaining oil from the old filter into your pan. Take the new filter and rub a thin layer of fresh oil around the rubber gasket on top — this helps it seal. 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.
Add new oil and check the level
Locate the 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, a little at a time. After pouring in most of it, wait a minute for the oil to settle, then check the level with the dipstick.
Pull the dipstick all the way out, wipe it clean with a rag, reinsert it fully, then pull it out again to read the level. The oil should reach the "full" mark. If it is low, add a little more and check again. Once it is at the correct level, screw the oil filler cap back on. Start the engine and let it run for 30 seconds, then turn it off and wait a minute. Check the dipstick one more time to confirm the level is still correct.
Dispose of old oil properly
Used motor oil cannot go in the trash or down a drain — it is an environmental hazard and illegal to dispose of that way in most places. Pour the old oil from your drain pan into a clean, sealed container with a lid, like an empty oil jug or milk jug.
Take the container to a recycling center, an auto parts store (many accept used oil for free), or a service station. Call ahead if you are unsure whether a location accepts it. Some hazardous waste collection events in your area may also take it. Keep the container sealed and upright during transport.
When to take your car to a service center instead
If you do not have a safe place to work under your car, lack the tools, or straightforward prefer not to do it yourself, a service center is the straightforward option. Call ahead and ask about their current wait time and price. Many shops can fit you in the same day, especially if you arrive early in the morning.
Bring your owner's manual or the vehicle information card from your glove compartment so the technician can confirm the oil type and capacity. The shop will handle everything — draining, filter replacement, new oil, and disposal — and will often check other fluid levels and filters while they have the car up. Ask for a receipt showing the mileage and date so you know when the next change is due.
Frequently Asked Questions
How do I know when my oil needs changing?
Check your owner's manual for the recommended interval in miles or months — this varies widely by vehicle and oil type. Many modern cars go 7,500 to 10,000 miles between changes, while older vehicles or those using conventional oil may need it every 3,000 to 5,000 miles. Some cars have an oil-life monitor on the dashboard that tells you when service is due.
What is the difference between synthetic and conventional oil?
Conventional oil is refined from crude oil and breaks down faster, so it needs changing more often. Synthetic oil is chemically engineered to last longer and perform better in extreme temperatures, so you can go longer between changes — sometimes 10,000 miles or more. Synthetic costs more per jug but may save money overall because you change it less often. Your manual will say which type your engine requires or recommends.
Can I mix different oil brands or types?
Mixing brands is generally safe as long as they are the same viscosity grade and type — all conventional, all synthetic, or all synthetic blend. Mixing conventional and synthetic is not ideal but will not damage your engine if you do it once. However, stick to one type and brand going forward. Always follow your manual's specifications for the oil grade your engine needs.
What if I spill oil on my driveway?
Absorb fresh spills with cat litter, sand, or an absorbent cloth, then sweep it up and dispose of it as hazardous waste. For old stains, a degreaser or pressure washer may help, though some staining may be permanent. To prevent spills, work slowly, use a drain pan large enough to catch everything, and wipe up drips as you go.
Do I need to replace the air filter at the same time?
No, the air filter and oil filter are separate and have different replacement schedules. Your manual will tell you when the air filter is due — typically every 15,000 to 30,000 miles. You can replace it at the same time as an oil change if it is due, but they are not connected to each other.