Changing your own motor oil is a simple way to keep your engine running smoothly and extend its lifespan. The process takes under two hours and can be done with basic tools and a little preparation.
Here’s a rundown of the main steps on how to change oil:
- Verify the type and amount of engine oil needed
- Gather the necessary tools
- Prepare your car for an oil change
- Locate, loosen, and remove the oil drain plug
- Drain the dirty oil out of the engine
- Clean and reinstall the oil drain plug
- Replace the old oil filter
- Pour fresh oil into the engine
- Run the engine, shut it off, and check the oil level
- Dispose of the old oil
Each step is detailed below, along with safety tips and recommended tools.
This Article Contains:
How to Change Oil in Your Car Step-By-Step
Although an oil change is a relatively straightforward part of vehicle maintenance, many car owners still get it wrong.
Why?
You need to be able to identify key parts in your vehicle’s engine compartment as well as use the right tools and materials.
A DIY oil replacement typically takes under two hours to complete. Still, if you’re unsure about doing it yourself, it’s best to get help from a professional mechanic. They have the right tools, expertise and can also check other components while servicing your car.
But if you still wish to do it yourself, here’s how to change your oil:
1. Verify the Type and Amount of Engine Oil Needed
Before changing the oil, check your car’s required oil amount, weight, and viscosity. For example, some diesel engines may need synthetic oil.
You can find this information in several places:
- Owner’s manual: The most reliable source for oil type and oil capacity.
- Oil filler cap (in the engine bay): Often labeled with the required oil weight (e.g., 5W-30).
- VIN lookup or dealer inquiry: Your vehicle identification number (VIN) can help a dealer or auto parts store confirm the exact specifications.
Caution: Using the wrong oil can shorten your engine’s lifespan or affect performance.
2. Gather the Necessary Tools
In addition to engine oil, a new oil filter, filter gasket, and washer, you’ll need these basic tools:
- Socket wrench and ratchet
- Oil filter wrench
- Funnel
- Jack and Jack stands (or use ramps if you don’t have stands)
- Oil drain pan (get one with a spout for easy pouring)
- Container for used engine oil
- Rubber mallet
For safety and cleanliness, have a plastic sheet, latex gloves, safety glasses, and paper towels or rags ready.
3. Prepare Your Car for an Oil Change
Park your car on a level surface and spread a plastic sheet underneath to catch any spills.
Start the engine and let it run for about five minutes to warm up the oil (hot oil drains more easily). Then turn off the car and allow it to cool slightly if the engine feels too hot to avoid burns.
Open the hood and loosen the oil filler cap or remove the oil dipstick to improve ventilation and help the oil drain faster later.
Before you get under the vehicle, follow these safety steps:
- Engage your parking brake.
- Use a jack to lift the car, then secure it with jack stands — never work under a vehicle supported only by a jack.
- Place wheel chocks behind the tires to prevent rolling.
Note: If your car has enough ground clearance, you may not need to lift it to reach the oil drain plug and filter.
4. Locate, Loosen, and Remove the Oil Drain Plug
Find the oil drain plug (sump plug or oil plug) on the bottom of the engine oil pan, directly beneath the engine block. It usually looks like a single bolt head.
Position your drain pan directly under the plug to catch the used oil. Then, using a socket wrench or ratchet, carefully loosen the plug counterclockwise. Keep slight pressure on it as you finish unscrewing so it doesn’t fall into the hot oil when it starts draining.
5. Drain the Dirty Oil Out of the Engine
Once you remove the drain plug, the used motor oil will begin to flow out immediately. Let it drain completely — this can take a few minutes — until it slows to a steady drip.
Oil may flow at an angle, so adjust your drain pan as needed to prevent spills. Make sure the pan stays directly beneath the stream to avoid splashing.
6. Clean and Reinstall the Oil Drain Plug
Wipe the drain plug clean and inspect both the plug and gasket for wear or damage, replacing them if needed.
Refit the gasket, reinstall the plug, and tighten it securely — ideally to the torque specification listed in your service manual. Avoid overtightening, which can strip the oil pan threads.
7. Replace the Old Oil Filter
Always change your oil filter along with the oil. Replacement method depends on the filter type:
- Spin-on filter: Simply twist off the old filter.
- Cartridge filter: Remove the housing cap, swap in the new filter, then reinstall the cap.
For both types of filters, you also need to:
- Check that the old rubber gasket hasn’t stuck to the engine block. A forgotten filter gasket can cause oil leaks (“double-gasket” issue).
- Lightly coat the new gasket with fresh oil to ensure a proper seal.
- Install the new filter hand-tight, then turn it just a bit more until snug. Don’t overtighten.
8. Pour Fresh Oil into the Engine
To add fresh oil:
- Lower the car back to the ground and open the engine bay.
- Remove the oil fill cap (marked with an oil can symbol).
- Slowly pour in the correct amount of new oil, using a funnel to prevent spills.
TIP: Start with slightly less than the full amount, then move on to the next step. This helps prevent overfilling and possible leaks.
9. Run the Engine and Check the Oil Level
After adding the new oil, start the engine and let it run for a minute or two. This circulates the oil through the system and fills the new oil filter.
Turn the engine off and wait a few minutes for the oil to settle. Then use the oil dipstick to confirm the level:
- Pull the dipstick out and wipe it clean.
- Reinsert it fully, then pull it out again.
- The oil level should fall between the minimum and maximum marks.
If it’s low, top up gradually and recheck until it’s within range. Once the level is correct, reinstall the oil cap and make sure it’s secure. Finally, inspect underneath the vehicle for any oil leaks around the drain plug or oil filter.
NOTE: Some newer cars use an electronic oil monitor instead of a dipstick — check your owner’s manual for instructions.
10. Dispose of the Old Oil
Transfer the old oil into a sealed container and take it to an auto parts store, oil recycling center, or authorized collection facility. Never pour oil on the ground or throw it in the trash — even small amounts can harm the environment.
Wipe up any spills immediately and keep oily rags out of household waste. Afterward, record your mileage and date so you’ll know when the next oil change is due.
You’ve got the steps down, now let’s answer some FAQs.
6 FAQs on Oil Change
Here are the answers to some commonly asked questions associated with oil change:
1. How Often Should I Change My Car’s Engine Oil?
Oil replacement intervals depend on the type of oil your vehicle uses:
- Conventional oil: every 5,000 – 7,500 miles
- Synthetic oil: every 10,000 – 15,000 miles
It’s best to change your oil slightly before the interval recommended in your owner’s manual to keep the engine in top condition.
2. Is It Important to Change Car Oil?
Yes. Regular oil changes are an essential part of car maintenance to keep your engine clean and well-lubricated.
Over time, old oil breaks down and collects debris, which can cause friction, overheating, and premature engine wear — eventually leading to costly repairs.
3. How Much Oil Does a Car Need?
Most cars need 4 to 8 quarts of engine oil, but the exact oil capacity varies by engine size and model. Always check your owner’s manual or the oil cap for the correct capacity before refilling.
4. Can I Just Add Oil Instead of Changing It?
No. Adding oil only replaces what’s lost but doesn’t remove the old, dirty oil and contaminants already in the engine. Over time, that degraded oil thickens and disrupts proper oil flow, losing its ability to lubricate and protect. This can lead to overheating and long-term engine damage.
5. Which Oil Should I Choose for My Car?
The correct oil depends on your vehicle’s age, model, and engine type. Most newer cars list the recommended oil weight (e.g., 5W-30) on the oil fill cap or in the owner’s manual.
Common oil types include:
- Synthetic oil: Offers the best protection and performance in extreme temperatures.
- Synthetic blend: A mix of synthetic and conventional oils for balanced protection and value.
- High-mileage oil: Helps reduce leaks and burn-off in older engines.
- Conventional oil: A basic, refined option for simpler or older engines.
Always follow the oil type specified in your owner’s manual. Using a lower-grade or incorrect oil can harm the engine and lead to costly repairs. If unsure, consult a professional mechanic.
6. How Much Does an Oil Change Cost?
A professional oil change typically costs $30 to $100, depending on your car’s make and model, the type of oil used, and your location.
Get Effortless Oil Changes with AutoNation Mobile Service
Regular oil changes are vital for keeping your engine performing at its best. The right oil, correct quantity, and proper disposal all make a big difference in your car’s longevity.
Looking for a hassle-free and affordable way to change engine oil?
Reach out to AutoNation Mobile Service — our automotive mechanics can change motor oil right from your driveway. We offer upfront pricing and a 12-month | 12,000-mile warranty on all work done.
Contact us for an oil change service or any other vehicle maintenance tasks.