A Complete Beginner Guide on How to Change Oil in Car

Learning how to change oil in car is one of the most rewarding maintenance tasks any vehicle owner can master. Regular oil changes protect your engine, improve fuel efficiency, and extend the lifespan of your vehicle. While taking your car to a mechanic is convenient, doing it yourself saves money and ensures you know exactly what fluids go into your motor. With a few basic tools and the right safety precautions, you can complete this routine maintenance project right in your driveway.

Gathering Your Tools and Supplies

Before you slide underneath your vehicle, make sure you have everything you need within arm reach. Preparation prevents frustrating interruptions once you get started. Check your vehicle owner manual to confirm the correct oil viscosity and fluid capacity for your specific engine model.

The correct amount and type of fresh motor oil
A new oil filter designed for your vehicle make and model
An oil filter wrench to remove the old, tight filter
A socket wrench set for the oil drain plug
An oil catch pan to collect the old fluid
A funnel to pour the new oil cleanly
Rags or paper towels for cleanup
Wheel chocks and a reliable car jack with jack stands

Preparing the Vehicle Safely

Safety is the most critical factor when working underneath a motor vehicle. Never rely solely on a hydraulic jack to hold the car up while you work. Park your vehicle on a flat, level surface such as a concrete garage floor or driveway. Engage the emergency brake firmly to prevent rolling.

Place wheel chocks securely behind the rear tires if you are lifting the front end. Raise the front of the vehicle using a rated floor jack, and immediately lower it onto sturdy jack stands. Give the car a gentle shake to verify that it is stable before crawling underneath.

It is often helpful to run the engine for two to three minutes before starting the job. Warm oil flows much faster and drains more completely than cold oil, carrying away more accumulated debris and contaminants. Just be careful not to let the engine run long enough to make exhaust components dangerously hot.

Draining the Old Engine Oil

Locate the oil drain plug on the bottom of the engine oil pan. Place your oil catch pan directly underneath the plug to catch the stream. Using the correct socket size, loosen the drain plug by turning it counterclockwise. Once it is loose, carefully unscrew it by hand while pushing inward slightly to keep hot oil from leaking past your fingers prematurely.

As the plug clears the threads, pull it away quickly so the rush of dark oil lands squarely in your catch pan. Let the old oil drain completely until it reduces to a slow drip. Inspect the drain plug and its washer for wear or damage, wiping the plug clean with a rag.

Replacing the Oil Filter

While the oil continues to drain, locate the old oil filter. Use your filter wrench if it is screwed on too tightly to turn by hand. Unscrew the filter counterclockwise and tilt it upward slightly as you remove it to minimize spills, as it still holds a small amount of used fluid. Empty any remaining oil from the old filter into your catch pan.

Take your new oil filter and dip a clean finger into a small amount of fresh motor oil. Smear a thin layer of this clean oil around the rubber gasket on the new filter. This simple step ensures a proper seal and makes the filter much easier to remove during your next service interval. Screw the new filter clockwise onto the mounting stud until it feels snug. Hand-tighten it securely, but avoid using a wrench to tighten it, as over-tightening can crush the rubber gasket or damage the threads.

Refilling with Fresh Motor Oil

Reinstall the oil drain plug by hand to avoid cross-threading, then tighten it gently with your wrench. Do not overtighten, as you could strip the oil pan threads. Locate the oil filler cap under the hood, remove it, and insert your clean funnel.

Pour in the specified amount of fresh motor oil slowly. Remove the funnel, replace the oil filler cap, and wipe away any accidental drips. Start the engine and let it idle for about thirty seconds while checking underneath the car for any leaks around the filter and drain plug. Turn off the engine, lower the vehicle back to the ground, and check the oil level one final time using the dipstick.