Learn How to Change Your Car's Oil Yourself

Why Learning to Change Your Own Oil Matters

Your car's engine oil does one critical job: it keeps moving metal parts from grinding against each other. Over time, oil breaks down from heat and friction, collecting dirt and debris. When this happens, your engine has to work harder, which costs you money in fuel and risks serious damage that can run into thousands of dollars in repairs.

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Most vehicle manufacturers recommend oil changes every 3,000 to 10,000 miles, depending on your car's age, engine type, and the kind of oil you use. Taking this maintenance task into your own hands means you control when it happens—no waiting for an appointment or paying labor costs that often range from $75 to $150 at a shop. The actual materials you need (oil, filter, and drain plug gasket) typically cost between $25 and $75.

Beyond the financial aspect, changing your own oil teaches you something valuable: how your car actually works. When you get under the hood yourself, you start noticing other things—loose hoses, worn belts, corroded connections. You become the person who catches small problems before they become expensive ones. This isn't mystical mechanical knowledge reserved for professionals; it's a skill that takes about 30 to 45 minutes once you know what you're doing.

Car owners who handle their own oil changes report feeling more confident about vehicle maintenance overall. They understand their car better and spend less time anxious about whether service shops are recommending work they actually need.

Practical takeaway: Changing your oil yourself can save $300 to $600 per year in labor costs while giving you direct knowledge of your vehicle's condition.

Gathering the Right Materials and Tools

Before you slide under your car, you need to assemble everything within arm's reach. Running back and forth to a garage or store mid-job wastes time and creates safety risks when you're working under a vehicle.

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Start with the consumables—the items you'll replace each time. You'll need motor oil (the correct type and amount for your vehicle, found in your owner's manual), a new oil filter, and a new crush washer or drain plug gasket. Don't assume all oil is the same. Your manual specifies viscosity (thickness) using numbers like 10W-30 or 5W-40. The "W" stands for winter; the first number indicates how the oil flows in cold temperatures, and the second number shows how it flows at operating temperature. Using the wrong viscosity can affect fuel economy and engine wear. Synthetic oils last longer than conventional oils (up to 10,000 miles versus 3,000-5,000), but they cost more upfront.

For tools, you'll need a wrench or socket that fits your drain plug (usually 14mm, 15mm, or 17mm), an oil filter wrench or band wrench, and a way to lift your car safely. A hydraulic jack costs $40 to $80 new, but many people borrow or rent them. Jack stands are not optional—they hold your car up while you work and cost about $40 for a pair. Never work under a car supported only by a jack; jacks fail and people get seriously injured.

Additional items make the job cleaner: an oil drain pan (about $15), shop rags or paper towels, a small funnel, a flashlight or headlamp, and gloves. If you're doing this for the first time, consider getting a creeper—a low platform on wheels that lets you slide underneath without lying flat on cold concrete.

Practical takeaway: Spend 15 minutes gathering materials before starting; a complete setup (excluding the jack if you already own one) costs under $100 and lasts through multiple oil changes.

Preparing Your Car and Workspace Safely

How you prepare your vehicle and workspace determines whether this job goes smoothly or becomes frustrating. Many DIY oil changes go wrong at this stage, not later.

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First, warm up your engine by running it for 2 to 3 minutes, then turn it off. Warm oil flows more easily than cold oil, so it drains faster and more completely. However, wait about 5 minutes after shutting off the engine—you want warm oil, not hot oil that will burn your skin. Test the temperature by touching the engine block briefly with your finger; if you can hold your hand there comfortably for several seconds, it's the right temperature.

Park on level ground. If you park on a slope, oil won't drain evenly and you'll get inaccurate readings when you check the level later. Make sure there's solid ground under the car—not dirt or gravel that can shift under the weight. Check that your workspace has adequate light. Many garages or driveways have poor lighting underneath the car, which is exactly where you need to see what you're doing. A work light that clamps to a shelf or stands on the ground costs $20 to $40.

Engage the parking brake and put the car in park or in gear if it's a manual. Position your jack under the frame (not under plastic bodywork, which will crack). Your owner's manual shows jack points—reinforced areas designed to support the car's weight. Raise the vehicle high enough to work comfortably, then place jack stands under the frame at the same height. Lower the car slightly onto the stands. This is your safety net if the jack fails.

Locate your oil drain plug underneath the engine. On most cars, it's near the front-center of the engine, a bolt sticking down from an aluminum pan. Take a photo with your phone so you remember what it looks like and where it is. You'll be looking at it from below while lying on your back.

Practical takeaway: Spend 10 to 15 minutes on preparation; proper setup prevents injuries and makes the actual oil change faster and less messy.

Draining Old Oil and Replacing the Filter

This is where you'll get dirty, so wear clothes you don't mind staining. Engine oil is difficult to wash out completely.

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Position your drain pan under the drain plug. Slide underneath with your wrench or socket. Loosen the drain plug by turning it counterclockwise—it might be tight from months or years of being in place. Use steady pressure rather than sudden force to avoid stripping the bolt. Once it's loose enough, you can unscrew it by hand. Be prepared for oil to drip down your arm; it happens to everyone. Let the plug fall into the drain pan (not onto the ground) and step back. Oil will pour out for several minutes. This is a good time to grab a coffee or check your phone rather than hovering directly underneath.

While the oil drains completely (this takes about 10 to 15 minutes), locate your oil filter. It's usually a cylindrical canister about the size of a soda can, somewhere on the side of the engine. Look for something with threads visible on top and a rubber gasket (a thick black ring) on the bottom. Place your drain pan underneath it because oil will spill when you remove it.

Use an oil filter wrench to unscrew the filter—it's designed to grip the canister while you turn it counterclockwise. Turn slowly at first; the filter contains used oil, and it will drip. Once it's loose enough, unscrew it by hand and carefully lower it into the drain pan. Don't squeeze a used oil filter; the oil inside is dirty and will spill everywhere.

Before installing the new filter, rub a small amount of fresh oil (from the jug you bought) around the rubber gasket on the new filter. This creates a better seal and makes removal easier next time. Screw the new filter on by hand until the gasket touches the engine, then turn it an additional three-quarters of a turn. This isn't a "tighten it as hard as you can" situation—hand-tight is correct. An over-tightened filter is difficult to remove and can damage the filter housing.

Go back to your drain plug. Wipe it clean with a rag and inspect it. If the threads look damaged or stripped, you may need to replace the plug—an $8 part that prevents future leaks. Clean the drain plug hole and the area around it. Install a new crush washer on the plug (this is the small brass or copper ring that creates the seal), then screw the plug back in. Hand-tighten it first, then use