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Oil change VS Adding oil: All You Need to Know

There is a common notion that adding oil is comparable to changing the oil; however, this is wrong. When new oil is added with used oil, it doesn’t get properly mixed with the old oil and loses quality.

An oil is essential for any vehicle. Oil can add in place of change, but some people are still unsure if this is possible. Oil change vs. adding oil is a debatable topic for many reasons. The following article provides further detail about the various considerations involved.

Oil change vs. Adding oil

Some people just add oil to their existing supply rather than swap it out. This procedure is feasible, albeit it is not without danger. When it comes to changing the oil in your vehicle, it is essential that you first inspect the oil in the vehicle. The oil’s cleanliness and the presence of any black particles are further considerations.

An integral aspect of maintenance is also oil changes. So, you should know that you can never skip out on an oil change in favor of just adding more oil. Also, to maintain the optimal performance of your vehicle engine, it is essential to do routine oil changes.

Oil change VS. Adding oil


There are no benefits to topping off your oil supply, but you must do it when it becomes low. As soon as feasible, change the oil as well, as the new oil is the best way to unwind the engine’s parts.

Oil changes at the intervals suggested by the manufacturer can extend the engine’s life and keep it free from damage.


Constantly adding oil instead of changing the oil can severely damage an engine. Slowly but surely, muck builds up, reducing oil pressure and halting the engine’s ability to move.

There are no drawbacks to changing the oil, but timing is critical to preventing harm to the engine.

When to add or top up oil?

It’s not as simple as just adding oil and expecting it to last longer than the last oil change; there are other factors to consider, such as the possibility of overfilling the system and causing damage. 

While doing so, there are a few things you should verify. For instance:

  1. Check your oil level properly.

Performing the following steps will help you determine the exact oil level in your vehicle:

  • Check to see that the engine is cool before continuing.
  • Remove the dipstick and clean it thoroughly.
  • To check the liquid depth and hue, rest the dipstick in its retracted position and take it out.

Inspecting the oil dipstick in your car can provide you with a wealth of information regarding the condition of your motor vehicle. The color of the oil on the dipstick can inform you whether or not your vehicle is needed an oil change by indicating whether or not there is enough oil on the dipstick.

  • Determine the current oil level.

When the oil in your car drops below the necessary, safe level, it’s time to top it off with the oil the manufacturer recommends. By lubricating its moving parts and controlling the flow of other fluids, oil keeps your engine from overheating and ensures its smooth running.

It’s more dangerous for your vehicle to drive with an inadequate amount of engine oil than to drive with a mix of new and old oil.

Do You Need to Change Oil at All?

Yes, the oil needs to change periodically. Changing your vehicle oil is a crucial part of car maintenance. Oil for the engine is like blood for a car since it maintains the engine adequately lubricated.

Your car’s condition is reflected in its level of lubrication. When you drive your car, the moving parts produce friction and heat. This could be an indication that your car’s engine is worn out. Here is where the engine oil comes into play. Lubricating moving parts with engine oil helps lessen the wear and tear caused by friction.

Changing the oil helps reduce engine heat, which is another perk. The motor oil will absorb the excess heat, protecting your car from damage. They must keep their thick viscosity for the oil to do its job.

However, motor oil has a limited lifespan. When you rack up many miles, your oil will grind down. This disables the motor oil from functioning as expected. There is no way to grease the engine because the vehicle is not in working order. As a result, it is extremely important to change the oil at regular intervals.

Is oil added during oil change?

Changing the oil on your vehicle requires removing the stale oil from the engine and replacing it with new oil. An “oil filter change” is when the oil and the oil filter are changed simultaneously. Because of the importance of the oil and oil filter, it is crucial to change the oil regularly to increase engine longevity.

What happens if you put new oil on top of old oil?

When new and used oils are blended, the new oil has trouble performing as planned because the interfacial tension is reduced. Take care to get the oil changed as fast as you can.

How often should I add oil to my car?

Oil change intervals can fluctuate significantly depending on factors such as the vehicle’s make and model, the oil’s age, and the driver’s habits. Before modern lubricants, oil changes were typically done every 3,000 miles. However, most engines recommend waiting between 5,000 and 7,500 miles between oil changes.

How long can I go without an oil change?

Every 5,000 to 7,500 miles, you should get your oil changed. On top of that, cars and trucks operating on synthetic oil can go up to 15,000 miles until they need to be serviced.

Is it okay to add new oil to old oil?

You shouldn’t add new oil to used oil unless it’s an emergency because it’s terrible for your car. Combining new and used oil to keep driving with a low oil level is preferable.

Why have I not changed my oil in 2 years?

Putting off an oil change for too long can lead to serious engine failure and, ultimately, the total loss of your vehicle. When engine oil turns to sludge, it can no longer perform its cooling function. In the worst possible scenarios, this can result in the vehicle shutting down, which would require purchasing a brand new car.

Is it okay to change the oil but not the filter?

Though it’s not entirely necessary, replacing the oil filter at any time of changing the oil in the vehicle is smart. It’s important to change the oil and get it filtered for major contaminants every so often and keep everything in the engine running smoothly.

Can you add oil to your car while it’s running?

It is best not to add oil to an engine that is already hot or running. A hot engine will have a slightly higher oil level, and spilling oil on top of it might cause smoldering or even a fire. The reason is that heating oil causes it to expand, causing this problem.

Final Verdict

The little things we do to care for our cars increase over time. Getting your oil changed regularly is one of the easiest and least expensive ways to maintain your car’s health and spot any problems before they become major expenses.

Also, an oil change is necessary to maintain the engine’s health. One should avoid utilizing black, old motor oil because of the severe consequences. On the other side, when the oil level is getting low, it is essential to add oil no matter the circumstances.

This article serves as a one-stop answer to all your confusion about Oil change vs. adding oil, so make sure you read it to the end to know all the information fully.             

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