Why do you have to change your car engine oil?

Most drivers are aware that maintaining a healthy vehicle and keeping it operating at peak performance necessitates regular oil changes. What isn’t frequently explained is why the oil was created in the first place. So, if you’ve ever wondered why automobile engines require oil, we’re here to answer your question. You’ll also get answers to the following questions:

  • Why do cars need oil to run?
  • What are the benefits of engine oil?
  • How often should change your car engine oil?
  • Reasons why you should change your car engine oil regularly?

Why do you have to change your car engine oil?

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Why do cars need oil to run?

Engine oil’s primary function is to lubricate your engine’s working parts. Because an engine has so many delicate and fast-moving parts, engine oil is required to keep them functioning smoothly by decreasing friction and wear. A thin layer of engine lubricant might sometimes be the only thing keeping engine parts from grinding together!

Even a well-lubricated engine, though, generates a significant amount of heat. As a result, another important function of engine oil is to remove heat from various components, allowing the engine to run at ideal temperatures. Your engine would quickly seize and overheat if you didn’t use engine oil. When your car engine requires oil to run properly, it is critical to do frequent oil changes.

Read more: Understanding High Mileage Oil

However, why do automobile engines require oil in the first place? When it comes to car engines, oil has a variety of functions, one of which is to lubricate the engine elements. You’ll understand why oil works effectively as a lubricant to keep parts operating smoothly if you’ve ever touched it in your hands. Your car’s engine is also cleaned by the oil. The oil filter prevents debris from accumulating inside the engine and keeps it clean by transporting the debris to the oil filter as it passes through.

The oil’s capacity to keep the engine cool is also critical. Inside your car’s engine, a lot of heat builds up, and the oil can assist keep it at a comfortable temperature. Oil loses its effectiveness as it ages, necessitating an oil change for your vehicle. If the car is not properly maintained, debris can accumulate in the old oil and engine, resulting in an expensive engine cleaning. So, now that we’ve addressed the subject, why do automobile engines require oil?

Read more: How to change car engine oil?

What are the benefits of engine oil?

Since its first use in the late 1800s, motor oil has gone a long way. While engine oil’s primary role was — and continues to be — to lubricate and cool engine parts, most modern engine oils provide a slew of other benefits that boost engine performance.

Another key purpose of motor oil is that it helps to keep your engine clean by filtering dirt and other pollutants. Additionally, engine oil can contain a range of additives, which are chemical compounds that improve the performance of the oil. Here are some of the most common additives found in motor oil, which include Corrosion inhibitors to protect against rust formation, Dispersants to remove and prevent sludge from building up, and Viscosity index improvers to boost the effectiveness of the oil in extreme temperatures.

Engine oil plays a significant role in keeping your engine running properly. The benefits of different types of oil — from conventional to high-mileage to synthetic blend and full synthetic engine oil — may vary depending on your vehicle. While complete synthetic engine oil is slightly more expensive, it provides the highest performance for most vehicles. Whatever sort of oil your automobile uses, it’s an important component that keeps the engine running smoothly. Additionally, changing your oil on a regular basis will help you save money on gas by keeping engine parts well-coated and protected from wear.

Read more: How long does it take to change a car engine oil?

How often should you change your car engine oil?

Many things influence this, including how you drive, the age of your engine, and where you live. Oil should be changed every 3,000 miles, according to several mechanics. Manufacturers of automobiles may recommend a greater period, such as 5,000 miles. You might be able to go 10,000 miles between oil changes if you utilize special synthetic oil.

An oil change every 5,000 miles will usually suffice for most individuals. If you travel at high speeds, you may want to consider changing your oil more frequently. This is especially true if you have an older engine or live in an extremely hot, cold, or dusty climate.

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Reasons why you should change your car engine oil regularly?

To ensure that your vehicle works smoothly and stays out of the shop, you should replace your oil on a regular basis. Don’t look away if you’re a first-time car owner! The followings are the common reasons why you should change your car engine oil on a regular basis:

  • Improve engine performance
  • Reduce harmful emissions
  • Gas mileage
  • Extend engine life
  • Eliminate minor errors


Read more: What are the reasons for oil leaks in my car when packed?

Improve engine performance

Nothing surpasses new oil when it comes to achieving top engine performance. A variety of elements in engines travel at rapid speeds. These moving parts are prone to causing friction, which results in the production of heat. Your automobile will have appropriate lubrication if you replace your oil on a regular basis, which will lower the amount of heat created by the engine.

Oil changes also remove dirt and debris from your engine, which causes it to run slower. Your engine will wear out and finally cease running correctly if it heats up due to old oil.

Reduce harmful emissions

Do you care about the environment? When you keep up with your oil changes, it’s simple to be “green.” Oil changes that aren’t kept up with can result in dirty, old oil, which emits noxious emissions. Because new oil does not burn like old oil, changing your oil on a regular basis will make your car more ecologically friendly. Make oil changes a priority on your calendar and help to keep our skies clean.

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Gas mileage

Oil changes are beneficial to both your engine and your money. One of the lesser-known advantages of regular oil changes is an improved gas mileage. Oil changes, in addition to acquiring a hybrid or electric vehicle, are a simple method to save money on petrol.

The friction created by outdated oil might cause your engine to slow down, necessitating more frequent trips to the gas station. If you keep your engine oiled, your car will go further than you think!

Extend engine life

Wouldn’t it be great to have a vehicle that lasts for years without breaking down? To attain this aim, it’s crucial to understand that obtaining a high-quality car, such as the ones we have on our lot, is only half of the battle. A clean engine, which is made possible by regular oil changes, can extend the life of your vehicle. What are the chances? That family car could live for several generations longer than you imagine.

Eliminate minor errors

Oil changes are an excellent way to keep your car in good working order. When you take your car in for an oil change, you can ask the mechanic to take a brief glance at your engine’s overall condition. They may discover something that has to be replaced or repaired when looking beneath the hood. This will save you money on repairs and prevent future damage to your vehicle.


In summary

There are many different types of automobile lubricants available. If you own a luxury vehicle, you may require a different type of oil than someone who drives a high-mileage vehicle. Before getting your oil changed, make sure to inquire about the optimum oil for your automobile based on its mileage and model. This might give your car a boost and improve the performance of the engine.

That is all for this article, where the gotten answers to the following questions:

  • Why do cars need oil to run?
  • What are the benefits of engine oil?
  • How often should change your car engine oil?
  • Reasons why you should change your car engine oil regularly?

I hope you learn a lot from the reading, if so, kindly share with others. Thanks for reading, see you around!