Learn How to Change Engine Oil for Better Car Performance

Editor: Dhruv Gaur on Mar 03,2025

 

Engine oil is the lifeblood of a vehicle since it lubricates the functioning parts and allows them to operate seamlessly. Regular oil changes help to ensure the very best performance from the engine in its use, allowing for enhanced fuel efficiency and prolonging the lifespan of your car. Besides being a money-saving measure, learning how to perform a DIY oil change is a great skill to have under your belt so that you can maintain control over your vehicle. 

In this simple, step-by-step guide to an oil change, we will take you through the complete process of changing your engine oil so you can confidently take care of this important part of car maintenance.

Why Changing Your Engine Oil Is Important

Before we go through the process, it's important to know why regular engine oil change is important. Engine oil deteriorates over time, picks up dirt, and loses its ability to lower friction and cool the engine. Skipping oil changes can cause excessive wear and tear, decreased engine efficiency, and even engine damage. Regular oil changes ensure:

  1. Better Engine Performance: New oil maintains lubrication in engine parts, minimizing friction and overheating. Without lubrication, metal parts in the engine may rub against one another, causing premature wear and tear. Clean oil also maintains the condition of engine seals and gaskets, avoiding leaks and ensuring the best performance.
  2. Improved Fuel Economy: Clean oil enables the engine to run efficiently, avoiding excessive fuel consumption. As old oil thickens and becomes sludgy, the engine has to labor harder to push it through, resulting in more fuel consumption. Oil changes keep the engine running smoothly, lessening strain and maximizing fuel efficiency.
  3. Increased Engine Life: Lubrication prevents engine wear, extending the life of the engine. The well-lubricated engine has less resistance within the engine, which keeps the engine cool and prevents the premature failure of engine components. Eventually, missing oil changes may result in expensive repairs or the total failure of the engine.
  4. Cost Savings: Preventative maintenance saves you from expensive engine repair down the road. Replacing the engine or fixing extensive damage from avoiding oil changes is very costly. Keeping up with regular oil changes keeps your car going for the long haul while saving you money. 

Tools and Materials Needed

mechanic removing used oil from car

Before you start, prepare the tools and materials needed to make the process easier. Preparing everything in advance will enable you to finish the task efficiently without interruptions. Whether you are a novice or a seasoned DIY enthusiast, having the right equipment will make the process easier. Moreover, employing the right tools reduces the risk of destroying engine parts or creating a mess when draining and replacing the oil.

Tools:

  • Socket wrench (for draining the drain plug)
  • Oil filter wrench
  • Funnel
  • Drain pan
  • Jack and jack stands or ramps
  • Gloves and safety glasses
  • Rags or paper towels

Materials:

  • New engine oil (refer to your vehicle's manual for the appropriate type and amount)
  • New oil filter
  • Replacement drain plug washer (if needed)

Step 1: Prepare Your Vehicle

Begin by parking your car on a flat surface to provide safety and avoid oil running unevenly when drained. Engage the parking brake and, if needed, place wheel chocks in position to hold the car in place. If the engine has been running for some time, let it cool for a minimum of 30 minutes to avoid burns from hot oil. If your vehicle is a low-rider, jack the car up and support it with jack stands or ramps to obtain better access to the drain plug at the bottom of the engine.

Step 2: Drain the Old Oil

After securing the vehicle, find the oil drain plug at the bottom of the oil pan under the engine. Place the drain pan underneath to collect the used oil prior to loosening and removing the plug using a socket wrench. Let the oil drain fully into the pan, which should take a few minutes. If your car needs it, replace the drain plug washer to avoid leaks when reinstalling the plug. Tighten it firmly when reinstalling, but do not over-tighten, as this will strip the threads and make it hard to change the oil in the future.

Step 3: Replace the Oil Filter

Then, find the oil filter, usually on the side or bottom of the engine. Loosen and take out the old filter using an oil filter wrench slowly since there might be some oil remaining inside. Place the drain pan close by in case there is any remaining oil. Before installing the new filter, put a little fresh oil on the rubber gasket at the filter so that it can seal properly. Hand-tighten the new filter so it's snug; don't use a wrench to over-tighten it, which can damage or leak.

Step 4: Add New Oil

After the old oil is drained and the filter is changed, find the oil fill cap underneath the hood. Take off the cap and pour in the same amount and type of new oil your car recommends using a funnel. After the addition of the oil, ensure the oil level using the dipstick is in the correct range. If there is a need, add some more oil to the optimal level. Lastly, replace the oil fill cap properly to avoid leaks.

Step 5: Leaks Check and Engine Test

Cranks the engine and lets it run for several minutes to allow new oil to pump throughout the system. When running the engine, check around the drain plug and oil filter for any signs of leakage. In case of finding leaks, switch off the engine and inspect if the plug or filter should be tightened more. Wait for a few minutes after shutting down the engine, then check the oil level with the dipstick and refill if needed. This last inspection guarantees your engine has the proper oil level before traveling.

Dispose of Old Oil Properly

Under no circumstances dispose of used engine oil in any way other than the proper way. It is extremely toxic and detrimental to the environment. Draining it down the drain, onto the ground, or into the household waste leads to pollution and health risks. Instead, transfer the used oil to a leak-proof container and dispose of it at a nearby recycling facility, auto parts retailer, or service station that handles oil waste. Some of these facilities also accept used oil filters for recycling, so contact them before getting rid of your spent filter. Staying abreast of responsible disposal of oil benefits not just the environment but also keeping the regulations local. In some locations, even improper disposal comes with a fine, so getting it done properly is an even better reason to do it right. Doing this makes you help limit pollution and sustain more environmentally friendly conditions.

How Frequently Do You Change Oil?

The interval for oil changes varies depending on several factors, such as the oil you use and your driving style. As a general rule, use the following guidelines:

  • Conventional Oil: Change at 3,000 to 5,000 miles.
  • Synthetic Blend Oil: Change at 5,000 to 7,500 miles.
  • Full Synthetic Oil: Change at 7,500 to 10,000 miles.

Always check your vehicle's owner's manual for the recommended interval.

Conclusion

Changing oil at home is easy and affordable maintenance for your vehicle. Through this oil change guide, you'll save money, promote engine life, and acquire useful car care skills. Proper oil changes improve performance as well as increase engine life, averting repair costs in the long run. By assuming responsibility for your car's maintenance, you improve your car's dependability and develop confidence in yourself to manage crucial maintenance work. Whether you're a seasoned do-it-yourselfer or just starting out, this manual enables you to keep your engine purring for years to come.


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