How to Change Engine Oil in a Car – A Step-by-Step Guide from Automan Spare Parts

Engine oil is the lifeblood of your car. It keeps the engine parts lubricated, reduces friction, and prevents overheating. Without clean oil, your engine can suffer serious damage and reduced performance.

At Automan Spare Parts, we’re committed to helping car owners not only find the best genuine auto parts but also maintain their vehicles the right way. In this guide, we’ll walk you through how to change your engine oil at home, how often to do it, and why it matters.

Why Is Changing Engine Oil Important?

Oil naturally breaks down and becomes contaminated with dirt, carbon, and other particles over time. This leads to:

• Increased engine wear and tear

• Overheating

• Poor fuel efficiency

• Engine sludge buildup

• Risk of complete engine failure

Regular oil changes help you avoid costly repairs and extend the life of your vehicle.

How Often Should You Change Your Engine Oil?

The frequency of oil changes depends on your car model, oil type, and driving conditions:

📌 Pro Tip: Always refer to your owner’s manual for the exact interval and oil specifications.

Tools and Materials You’ll Need

Before you begin, gather the following:

• New engine oil (check viscosity and volume from your owner’s manual)

• New oil filter

• Oil drain pan

• Funnel

• Oil filter wrench

• Socket wrench (usually 13mm–17mm)

• Gloves, rags, and safety glasses

• Car jack and jack stands (if needed)

Step-by-Step Guide: How to Change Engine Oil

1. Warm Up the Engine (5 Minutes)

Turn on your car and let the engine idle for about 5 minutes. This warms up the oil, making it flow out faster and more completely during the drain.

2. Park the Vehicle on a Level Surface

Turn off the ignition, engage the handbrake, and ensure your car is stable. If needed, lift the car using a hydraulic jack and secure it with jack stands for easy access underneath.

3. Place the Oil Drain Pan

Locate the oil drain plug underneath the engine (usually at the bottom of the oil pan). Put the oil drain pan directly beneath it to catch all the used oil.

4. Drain the Old Oil

Use a socket wrench to loosen and remove the oil drain plug. Be careful — the oil will be hot! Let it completely drain into the pan (takes around 5–10 minutes).
Once done, clean the drain plug and reinstall it securely.

5. Remove the Old Oil Filter

Use an oil filter wrench to remove the oil filter (it’s usually located near the oil pan or on the engine block).
Before installing the new filter, apply a thin layer of new oil to the rubber gasket on the top of the new filter.
Screw on the new filter by hand only — do not over-tighten.

6. Pour in the New Engine Oil

Pop the hood and remove the engine oil filler cap (usually labeled “OIL” or has an oil can symbol).
Insert a funnel and pour the new oil slowly. Refer to the owner’s manual for the correct quantity.

After filling, check the oil dipstick — wipe, reinsert, and pull out again. Ensure the oil level is in the safe range (between Min and Max).

7. Start the Engine and Check for Leaks

Once filled, start the engine and let it idle for 1–2 minutes.
Turn it off and inspect the underside for any oil leaks.
Also, recheck the oil level and top off if necessary.

8. Dispose of Old Oil Responsibly

Used engine oil is hazardous. Pour it into a sealed container and take it to a local recycling center, auto shop, or hazardous waste facility. Never pour it down the drain or in the garbage.

Signs Your Car Needs an Oil Change

• Dark, dirty oil on the dipstick

• Engine knocking or loud noises

• Oil warning light on the dashboard

• Poor fuel economy

• Burning oil smell

Final Tips from Automan Spare Parts

• Always keep a spare oil filter and extra oil in your garage.

• Use OEM or high-quality aftermarket filters to ensure engine protection.

• If unsure about oil specs, contact your vehicle manufacturer or trusted mechanic.