DIY Engine Oil Change: Tools, Step-By-Step Procedure, and Common Mistakes to Avoid

This article is part of our Engine Oils Guide.

Changing your own engine oil is one of the most useful maintenance jobs a DIY car owner can learn. It saves money, helps you stay on schedule, and gives you a chance to inspect your vehicle underneath for leaks, worn parts, or damage before they turn into bigger problems.

The job itself is not complicated, but it does require the right supplies, safe lifting practices, and attention to detail. Using the wrong oil, overtightening the drain plug, or forgetting to check the final oil level can create problems that cost far more than a basic oil service.

This guide walks through the tools you need, the exact order of the job, and the most common mistakes to avoid so you can do a clean, safe, and effective oil change at home.

What You Need Before You Start

Before you touch a wrench, confirm the correct oil viscosity, oil specification, oil capacity, and oil filter for your vehicle. This information is usually found in the owner’s manual, under the hood, or in a trusted parts lookup. Modern engines can be sensitive to oil spec requirements, especially turbocharged engines, direct-injection engines, and vehicles that call for synthetic oil.

Basic Tools and Supplies

• Correct Engine oil type and quantity for your vehicle
• New oil filter
• Drain pan with enough capacity for the full oil volume
• Socket or wrench for the drain plug
• Oil filter wrench if needed
• Funnel
• Shop rags or paper towels
• Gloves and safety glasses
• Floor jack and jack stands, or ramps rated for your vehicle
• Wheel chocks
• Replacement drain plug washer or crush washer if required
• Torque wrench if you want to tighten the drain plug and filter housing to spec

Helpful Extras

• Cardboard or mat to protect your driveway
• Flashlight or work light
• Container for transporting used oil
• Creeper for easier access under the vehicle
• Maintenance log or app to record mileage and date

Safety Steps That Matter

An oil change is simple, but working under a vehicle is never something to take lightly. The safest setup is a flat, hard surface with the parking brake set and the vehicle supported by proper ramps or jack stands. Never rely on a hydraulic jack alone.

• Park on level ground so the oil drains properly and the final level reading is accurate.
• Let the engine warm up for a few minutes, then shut it off. Warm oil drains faster, but hot oil can burn you.
• Use wheel chocks if the vehicle is lifted.
• Keep your face and hands clear when removing the drain plug because oil may come out faster than expected.
• Wear gloves and eye protection, especially when working under the drain stream.

Step-by-step DIY Engine Oil Change Procedure

Warm the Engine Briefly

Start the engine and let it run for about 2 to 5 minutes. You want the oil warm enough to flow easily, not dangerously hot. Shut the engine off and give it a minute to settle.

Lift and Secure the Vehicle

Drive onto ramps or raise the front of the vehicle at the proper jack points. Support it securely with jack stands if needed. Double-check stability before getting underneath.

Remove the Oil Fill Cap and Locate the Drain Plug

Open the hood and remove the oil fill cap. This helps the system vent so old oil drains more smoothly. Then locate the oil pan drain plug underneath the engine. Make sure you are looking at the engine oil pan and not the transmission pan, which is a common beginner mistake.

Position the Drain Pan and Remove the Drain Plug

Place the drain pan slightly behind the drain plug because oil may initially shoot out at an angle. Loosen the plug carefully, then finish removing it by hand while keeping pressure against the threads until you are ready to pull it away. Let the old oil drain fully.

Inspect the Drain Plug and Washer

Check the drain plug threads and inspect the washer. Many vehicles use a crush washer or sealing washer that should be replaced each time. Reusing a damaged washer can cause annoying seepage or a full leak later.

Remove the Old Oil Filter

Move the drain pan under the filter because it may still contain oil. Spin off the old filter by hand or with a filter wrench if needed. Before installing the new one, make sure the old rubber gasket did not stick to the engine’s filter mounting surface. A double gasket can cause a major leak within seconds of startup.

Prepare and Install the New Filter

Lightly coat the new filter gasket with fresh oil. If the filter mounts vertically and the design allows, you can partially fill it with fresh oil first to reduce dry start time. Thread the filter on by hand until the gasket contacts the base, then tighten according to the filter instructions. Most spin-on filters are tightened by hand, not cranked down with a wrench.

Reinstall the Drain Plug

Once the oil has slowed to an occasional drip, reinstall the drain plug with the correct washer. Thread it by hand first to avoid cross-threading, then tighten it to the manufacturer’s torque specification if available. If you do not have the spec, snug is not the same as overtightened. The oil pan threads are easier to damage than many DIYers realize.

Add Fresh Oil

Lower the vehicle if required for a level fill and accurate dipstick reading. Insert a funnel and add slightly less than the full listed oil capacity at first. This prevents overfilling. Reinstall the oil fill cap when done.

Start the Engine and Check for Leaks

Start the engine and let it idle for 30 to 60 seconds. Watch the oil pressure warning light; it should go out quickly. Then inspect underneath for leaks around the drain plug and oil filter. Shut the engine off and wait a few minutes for the oil to drain back into the pan.

Check and Top Off the Oil Level

Pull the dipstick, wipe it, reinsert it fully, and check the level again. Add oil a little at a time until it reaches the proper range, ideally near full but not over. Do not guess. Overfilled oil can foam, increase crankcase pressure, and create drivability or seal issues.

Reset the Maintenance Reminder and Record the Service

If your vehicle has an oil life monitor or maintenance light, reset it using the procedure in the owner’s manual. Record the date, mileage, oil brand, viscosity, and filter used. This makes future maintenance easier and helps if you ever sell the vehicle.

How to Choose the Right Engine Oil

Choosing the right oil matters as much as changing it on time. The safest move is to match the owner’s manual exactly. Viscosity, such as 0W-20, 5W-30, or 5W-40, affects cold-start flow and high-temperature protection. The required certification or manufacturer approval is just as important.

• Use the viscosity grade recommended for your engine and climate.
• Check for required standards such as API, ILSAC, Dexos, or specific European approvals if your vehicle calls for them.
• Synthetic oil is common in modern vehicles and often required for extended intervals or turbocharged engines.
• If your vehicle burns some oil between changes, monitor the dipstick regularly and top off with the same oil when possible.

Common Mistakes to Avoid

Most oil change problems come from a few preventable errors. Slow down, verify each step, and do a final leak and level check before you call the job finished.

• Using the wrong oil viscosity or wrong performance specification.
• Forgetting to replace the drain plug washer when the design requires one.
• Cross-threading or overtightening the drain plug.
• Leaving the old oil filter gasket stuck to the engine and creating a double gasket leak.
• Installing the filter too loose or far too tight.
• Adding too much oil because the filter was not filled yet or the oil had not drained back before checking.
• Mistaking the transmission drain plug for the engine oil drain plug.
• Skipping the leak check after startup.
• Forgetting to reinstall the fill cap or dipstick fully.
• Not disposing of used oil and filters properly.

Signs Something Went Wrong After the Oil Change

If your engine runs normally and the oil level stays correct, the job was likely done right. If not, address the issue immediately rather than continuing to drive.

• Oil warning light stays on or comes back on after startup
• Fresh oil dripping under the front or center of the engine
• Burning oil smell from oil contacting hot exhaust components
• Oil level reading far above or below the safe range
• Engine ticking, rattling, or unusual noise after the service
• Visible spray pattern around the filter area from a loose filter or double gasket

If you notice any of these symptoms, shut the engine off and inspect the drain plug, filter, oil level, and fill cap. A quick correction can prevent serious engine damage.

What to Do with Used Oil and the Old Filter

Used motor oil should never be poured on the ground, into a drain, or thrown in household trash. Most auto parts stores, many service centers, and local recycling facilities accept used oil and often filters as well.

• Pour old oil from the drain pan into a sealed container once it cools.
• Let the old filter drain as much as possible into the pan.
• Transport used oil upright in a leak-proof container.
• Check local rules for filter recycling and oil disposal.

When DIY Makes Sense and when It Doesn’t

A DIY oil change makes sense if you have safe lifting equipment, enough workspace, and confidence in following the procedure carefully. It is especially worthwhile if you like inspecting your vehicle, using a preferred oil brand, or maintaining multiple cars at home.

You may want professional service if your vehicle has difficult underbody access, a cartridge-style filter housing tucked near hot components, a large skid plate, or a warranty situation where you prefer shop documentation. The goal is not just saving money; it is doing the job correctly every time.

Related Buying Guides

Check out the Engine Oils Buying Guides

FAQ

How Often Should I Change My Engine Oil?

Follow the interval in your owner’s manual or oil life monitor. Many modern vehicles go 5,000 to 10,000 miles on synthetic oil, but severe driving conditions can shorten that interval.

Can I Change My Oil Without Changing the Filter?

It is best to replace the filter at every oil change. A used filter still holds contaminated oil and may have reduced flow capacity compared with a fresh one.

Do I Need to Pre-fill the New Oil Filter?

Only if the filter mounts in a way that allows it and the manufacturer does not advise otherwise. Many filters mount sideways or at an angle, so pre-filling is not practical.

What Happens if I Put in Too Much Oil?

Overfilling can cause aeration, increased crankcase pressure, leaks, and poor engine performance. If you overfill, drain or extract the excess before driving much.

Should I Change Oil when the Engine Is Hot or Cold?

Warm is ideal. Slightly warmed oil drains faster and carries contaminants out better, but a fully hot engine and exhaust can increase your risk of burns.

Why Is My Oil Light on After an Oil Change?

Possible causes include low oil level, a loose filter, a leaking drain plug, the wrong oil, or a serious pressure issue. Shut the engine off and inspect everything immediately.

Can I Reuse the Drain Plug Washer?

Sometimes, but many vehicles use a crush washer designed for one-time use. Replacing it is cheap insurance against leaks.

How Do I Know I Used the Correct Oil?

Verify the viscosity and required specification in the owner’s manual, then match the label on the oil container. Both the weight and the approval standard must be correct.