How To

How to change the Car Engine oil at Home

Importance of Changing Engine Oils:

Changing a car’s engine oil is paramount for several reasons. It is a crucial maintenance task that directly impacts the vehicle’s performance, efficiency, and overall health. Here are the key reasons why changing the car’s engine oil is essential:


Engine oil lubricates the engine’s moving parts, reducing friction and preventing wear and tear. This ensures that the engine operates smoothly and efficiently, extending its lifespan.

Heat Dissipation:

Engine oil helps dissipate heat generated during the combustion process. It absorbs heat from the engine components and carries it away, preventing overheating and potential engine damage.

Contaminant Removal:

Over time, engine oil accumulates debris, dirt, and contaminants. Regular oil changes ensure that these harmful particles are removed, preventing sludge buildup and maintaining engine cleanliness.

Improved Fuel Efficiency:

Using the correct viscosity of fresh engine oil optimizes engine efficiency, improving fuel economy and reducing operating expenses.

Engine Performance:

Clean and properly lubricated engine components perform optimally, delivering smooth acceleration and responsive power, enhancing the overall driving experience.

Prevents Engine Wear:

The moving parts inside the engine can cause friction and wear down over time. Fresh engine oil with proper additives forms a protective barrier, reducing wear and preserving engine integrity.

Extends Engine Life:

Regular oil changes contribute to the long-term health of the engine, potentially extending its life and delaying the need for costly repairs or replacements.

Maintains Warranty Validity:

For new cars, following the manufacturer’s recommended oil change schedule is often a requirement to keep the warranty valid.

Optimal Oil Pressure:

Engine oil maintains proper pressure, ensuring all engine components receive the necessary lubrication and function as intended.

Reduces Harmful Emissions:

Well-maintained engines produce fewer harmful emissions, creating a cleaner environment and meeting emission standards.

Risks of not changing the oil:

Not changing the engine oil on time can lead to several risks and potential consequences for your vehicle’s performance and longevity. Here are the key risks of not changing the oil regularly:

Engine Wear and Tear:

Engine oil lubricates the engine’s moving parts, reducing friction and preventing wear. As the oil ages and becomes contaminated, its lubrication ability diminishes, causing heightened friction and accelerated wear on engine parts. This can result in costly repairs or even engine failure.


As engine oil ages, it loses its ability to dissipate heat effectively. Without proper heat dissipation, the engine can overheat, causing damage to various engine parts and reducing the engine’s efficiency and lifespan.

Sludge Formation:

Over time, old engine oil can break down and form sludge due to the accumulation of contaminants. Sludge clogs the oil passages, impairs oil circulation, and reduces lubrication to critical engine parts, further accelerating wear and reducing engine performance.

Reduced Fuel Efficiency:

Old and dirty engine oil increases friction and hampers engine efficiency, reducing fuel economy. Your car may consume more fuel, costing you more in the long run.

Loss of Engine Performance:

A poorly lubricated engine can experience reduced power, sluggish acceleration, and decreased overall performance. This can make driving less enjoyable and efficient.

Potential Engine Failure:

Increased wear, heat buildup, and sludge formation can lead to severe engine damage or complete failure. Replacing or repairing a failed engine can be an extremely costly endeavour.

Voided Warranty:

For newer vehicles, not adhering to the manufacturer’s recommended oil change intervals can void your warranty. This means you may have to bear the cost of any repairs or replacements that would otherwise be covered under warranty.

Increased Emissions:

An inefficient engine due to old oil can produce higher emissions, negatively impacting the environment and potentially leading to non-compliance with emission regulations.

Unreliable Performance:

Without regular oil changes, your car’s engine may become unpredictable, leading to unexpected breakdowns and leaving you stranded on the road.

Overall Vehicle Longevity:

Neglecting oil changes can significantly reduce the overall lifespan of your vehicle. Consistent upkeep, such as regular oil changes, is vital in maintaining smooth car performance and prolonging lifespan.

Gather the Necessary Tools and Materials:

Before starting, ensure you have the required tools and materials:

New Engine Oil:

The new engine oil is the most essential. Refer to your car’s manual to find the correct type and viscosity the manufacturer recommends.

Oil Filter:

The oil filter’s main task is to capture and remove contaminants and impurities from the engine’s circulating oil. Always replace the old oil filter with a new one during each oil change.

Oil Drain Pan:

An oil drain pan is used to catch the old oil as it is drained from the engine. It should be large enough to hold the entire oil capacity of your car.

Socket Wrench and Oil Filter Wrench:

A socket wrench is necessary to remove the oil drain plug from the bottom of the engine. An oil filter wrench helps you remove the old oil filter safely and efficiently.


A funnel is essential for pouring the new engine oil into the oil fill hole without spills or wastage.

Safety Gloves and Goggles:

It’s crucial to protect your hands and eyes from contact with the old oil and any potential splashes during the process. Safety gloves and goggles provide this protection.

Jack and Jack Stands:

If your car is low to the ground, a jack is required to lift the vehicle safely. Jack stands are used to support the car securely while you work underneath.

Find a Suitable Location:

Look for a flat and level surface to park your car. Make sure there is enough space to access the underside of the vehicle.

Prepare Your Car:

Ensuring your car is properly prepared before an oil change is crucial to guarantee a safe and effective process.

Park on Level Ground:

Choose a flat and level surface to park your car. This ensures stability and prevents the car from rolling while you work underneath it. Avoid sloped or uneven surfaces to maintain safety during the oil change.

Engage the Parking Brake:

Before starting any work on your car, engage the parking brake. Having the parking brake engaged adds safety, preventing any unforeseen movement of the car while you work beneath it.

Gather Safety Equipment:

Wear gloves and goggles before the oil change. Safety gloves protect your hands from contact with old oil, which may contain contaminants. Goggles shield your eyes from potential splashes of oil during the draining process.

Warm Up the Engine:

It’s beneficial to warm up the engine for a few minutes before changing the oil. Warm oil flows more smoothly and efficiently, making it easier to drain the old oil.

Locate the Oil Drain Plug:

Refer to your car’s manual to locate the position of the oil drain plug. Typically, it is located on the bottom of the engine oil pan.

Position the Oil Drain Pan:

Position the oil drain pan directly under the oil drain plug to capture the old oil as it drains from the engine.

Remove the Oil Fill Cap:

Remember to remove the oil fill cap before draining the old oil. This allows air to flow freely into the engine, helping the oil to drain more smoothly.

Drain the Old Engine Oil:

  • Warm Up the Engine Run the engine for a few minutes to warm up the oil, making it easier to drain.
  • Locate the Oil Drain Plug Consult your car’s manual to locate the oil drain plug. It is usually on the bottom of the engine.
  • Place the Oil Drain Pan Position the oil drain pan beneath the drain plug.
  • Unscrew the oil fill cap to promote smooth draining by allowing unrestricted air circulation.
  • Drain the Oil Using a socket wrench, loosen the drain plug to enable thorough draining of the old oil.

Replace the Oil Filter:

  • Locate the Oil Filter. Find the oil filter, typically near the oil pan.
  • Remove the Old Oil Filter. Utilize an oil filter wrench counterclockwise to remove the old oil filter.
  • Apply New Oil to the Gasket Before installing the new oil filter, apply a thin layer of new oil to the gasket.
  • Install the New Oil Filter Hand-tighten the new oil filter onto the engine until snug.

Add New Engine Oil:

  • Choose the Right Engine Oil. Select the appropriate engine oil according to your car’s specifications.
  • Introduce the new oil by placing a funnel in the oil fill hole and carefully pouring it into the engine.
  • Inspect the oil level by employing the dipstick after adding the oil, and add more if needed.

Inspect for Leaks:

  • Start the Engine. Start the engine and let it run for a few minutes.
  • Check for Leaks. Conduct a thorough inspection for any leakage signs around the drain plug and oil filter area.

Dispose of the Old Oil:

  • Properly dispose of the old oil by taking it to a recycling centre or an auto parts store that accepts used oil.

Reset the Oil Change Reminder:

  • If your car has an oil change reminder, reset it according to your car’s manual.


Changing your car’s engine oil at home can save you time and money while giving you a sense of accomplishment. Remember to follow safety precautions and refer to your car’s manual for specific instructions. Changing your car’s engine oil will keep your vehicle running smoothly and efficiently.

Read More 👉 How to Clean a Car Engine


Mufaqar is a seasoned developer, blogger, and the founder of Carbuzz. With expertise in technology, he shares valuable insights and resources through his renowned blog. Committed to excellence, Mufaqar empowers readers with the latest industry knowledge and guidance to excel in their automobile technoloyg.

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