Engine Oil: Everything You Need to Know

Published on: March 2, 2023
Written by Gian Camilo / Fact-checked by Harun Khan

When it comes to vehicle maintenance, one of the most crucial components that cannot be overlooked is engine oil. Engine oil serves as the lifeblood of the engine, providing lubrication, cooling, cleaning, and protection against corrosion and wear.

engine oil everything you need to know

Engine oil is one of the most essential components of any vehicle, yet it is often overlooked. Many people only pay attention to their engine oil when there is a problem, such as low oil pressure or engine noise.

Engine oil serves a crucial role in maintaining the optimal performance and longevity of your vehicle’s engine. It is important to understand the functions of engine oil and the different types available, as well as how to choose the right engine oil and maintain it properly.

Engine Oil

Engine oil, also known as motor oil, is a lubricant used in internal combustion engines to reduce friction between moving metal parts, prevent wear and tear, and protect against corrosion. It is typically made up of a base oil and a variety of additives that enhance its performance and properties, such as viscosity, thermal stability, and detergency.

Engine oil is essential for maintaining the proper functioning and longevity of an engine, and must be periodically changed or replenished to ensure optimal performance and protection.

Functions of Engine Oil

Engine oil serves several critical functions that are essential for the optimal performance of the engine.

Lubrication

One of the primary functions of engine oil is lubrication. The engine contains many moving parts that rub against each other, generating a lot of friction and heat. Without proper lubrication, friction can cause these parts to wear out quickly and damage the engine. Engine oil provides a protective layer between these moving parts, reducing friction and wear. This helps the engine to run smoothly, quietly, and efficiently.

Cooling

Engine oil also helps to cool the engine. As the engine runs, it generates a lot of heat. If left unchecked, this heat can cause the engine to overheat and damage its components. Engine oil helps to transfer heat away from the engine’s hot surfaces, allowing it to dissipate into the environment more efficiently. This helps to regulate the engine’s temperature and prevent overheating.

Cleaning

Another crucial function of engine oil is cleaning. As the engine runs, it can accumulate dirt, debris, and other contaminants that can harm its components. Engine oil helps to suspend and remove these contaminants, preventing them from clogging or damaging the engine. It also helps to prevent the build-up of sludge, a thick and sticky substance that can cause damage to the engine’s moving parts and reduce its efficiency.

Protection Against Corrosion and Wear

Engine oil forms a protective layer on engine parts, preventing corrosion and wear. As the engine operates, it is exposed to moisture and other elements that can cause rust and corrosion. Engine oil provides a barrier between the engine parts and the elements, preventing corrosion and extending the lifespan of the engine. It also helps to reduce wear on the engine parts, preventing them from breaking down or failing prematurely.

Types of Engine Oil

There are different types of engine oils available in the market, and choosing the right type is crucial for maintaining the optimal performance of your engine.

types of engine oil

Mineral Oil

Mineral oil is the most basic type of engine oil, and it is made from crude oil. It is the cheapest type of engine oil and is suitable for older vehicles with low-performance engines. Mineral oil needs to be changed more frequently than synthetic oil and does not offer the same level of protection against wear and tear.

Synthetic Oil

Synthetic oil is a more advanced type of engine oil, made from chemical compounds rather than crude oil. It is more expensive than mineral oil but offers superior performance and protection. Synthetic oil lasts longer than mineral oil and can handle high temperatures better. It also provides better fuel economy and reduced emissions. Synthetic oil is suitable for modern engines with high-performance requirements.

Semi-Synthetic Oil

Semi-synthetic oil is a blend of mineral and synthetic oils. It offers better protection than mineral oil and is more affordable than synthetic oil. Semi-synthetic oil is suitable for vehicles that require high-performance protection but do not need the full benefits of synthetic oil.

High-Mileage oil

High-mileage oil is designed specifically for vehicles with high mileage. It contains additives that help to condition the engine’s seals and prevent oil leaks. High-mileage oil also contains more detergents than regular engine oil, which helps to clean the engine and reduce sludge buildup.

Viscosity

Viscosity is a measurement of the oil’s thickness or resistance to flow. It is an essential consideration when choosing engine oil. Engine oil with a low viscosity flows more easily and provides better fuel economy, while oil with a high viscosity provides better protection against wear and tear. The viscosity of engine oil is usually indicated by two numbers, such as 5W-30 or 10W-40. The first number indicates the oil’s viscosity in cold temperatures, and the second number indicates its viscosity in hot temperatures.

Choosing the Right Engine Oil

Choosing the right engine oil for your vehicle is crucial for maintaining the optimal performance and longevity of your engine. Here are some factors to consider when choosing the right engine oil:

Vehicle Specifications

The first step in choosing the right engine oil is to refer to your vehicle’s owner’s manual. The manual will provide information on the recommended engine oil for your vehicle, including the viscosity grade and type of oil. It is essential to follow the manufacturer’s recommendations as they have designed the engine to work with specific types of oil.

Performance Requirements

Consider the performance requirements of your vehicle. Modern high-performance engines require synthetic oil as they are designed to handle high temperatures and have tighter tolerances. On the other hand, older vehicles with low-performance engines can use mineral oil.

Driving Conditions

Driving conditions also play a significant role in choosing the right engine oil. If you frequently drive in extreme temperatures or harsh driving conditions, such as stop-and-go traffic or towing heavy loads, you may need to use a higher viscosity or synthetic oil to ensure adequate protection.

Budget

Cost is also a factor to consider when choosing engine oil. Synthetic oil is more expensive than mineral oil, but it provides superior protection and lasts longer. However, if you’re on a tight budget, you may opt for mineral or semi-synthetic oil.

Brand Reputation

Choose a reputable brand of engine oil. Cheap or unknown brands may not provide adequate protection, and their quality may not be consistent. Reputable brands have a proven track record of providing high-quality engine oil and will stand behind their products.

Change Intervals

Consider the recommended oil change intervals for the type of oil you choose. Synthetic oil can last longer than mineral oil, but you should still change it according to the manufacturer’s recommendations.

Choosing the right engine oil for your vehicle is crucial for maintaining the optimal performance and longevity of your engine. Consider your vehicle’s specifications, performance requirements, driving conditions, budget, brand reputation, and change intervals when selecting the type of engine oil. By choosing the right engine oil and changing it regularly, you can ensure that your engine runs smoothly and efficiently for years to come.

Choosing the Right Engine Oil

Choosing the right engine oil for your vehicle is crucial for maintaining the optimal performance and longevity of your engine. Here are some factors to consider when choosing the right engine oil:

Vehicle Specifications

The first step in choosing the right engine oil is to refer to your vehicle’s owner’s manual. The manual will provide information on the recommended engine oil for your vehicle, including the viscosity grade and type of oil. It is essential to follow the manufacturer’s recommendations as they have designed the engine to work with specific types of oil.

Performance Requirements

Consider the performance requirements of your vehicle. Modern high-performance engines require synthetic oil as they are designed to handle high temperatures and have tighter tolerances. On the other hand, older vehicles with low-performance engines can use mineral oil.

Driving conditions

Driving conditions also play a significant role in choosing the right engine oil. If you frequently drive in extreme temperatures or harsh driving conditions, such as stop-and-go traffic or towing heavy loads, you may need to use a higher viscosity or synthetic oil to ensure adequate protection.

Budget

Cost is also a factor to consider when choosing engine oil. Synthetic oil is more expensive than mineral oil, but it provides superior protection and lasts longer. However, if you’re on a tight budget, you may opt for mineral or semi-synthetic oil.

Brand Reputation

Choose a reputable brand of engine oil (it’s okay to mix different engine oil brands often arises). Cheap or unknown brands may not provide adequate protection, and their quality may not be consistent. Reputable brands have a proven track record of providing high-quality engine oil and will stand behind their products.

Change Intervals

Lastly, consider the recommended oil change intervals for the type of oil you choose. Synthetic oil can last longer than mineral oil, but you should still change it according to the manufacturer’s recommendations.

How to Change Engine Oil?

Changing engine oil is an important part of vehicle maintenance that should be done regularly. Here are the steps to change engine oil:

how to change engine oil

Gather the necessary tools and supplies – You will need a socket wrench, an oil filter wrench, a funnel, a drain pan, a new oil filter, and the correct type and amount of oil for your vehicle. Check your vehicle manual or consult a mechanic to determine the correct type and amount of oil needed. Choosing the right automatic transmission oil filter can be overwhelming, with so many options available in the market.

Warm up the engine – Start the engine and let it run for a few minutes to warm up the oil. This will help the oil flow out more easily when you drain it.

Locate the oil drain plug – Consult your vehicle manual to find the location of the oil drain plug. Place the drain pan underneath the plug.

Remove the oil drain plug – Use the socket wrench to loosen and remove the oil drain plug. Be careful, as the oil may be hot. Let the oil drain completely into the pan.

Replace the oil filter – Use the oil filter wrench to remove the old oil filter. Apply a small amount of oil to the gasket on the new oil filter, then install the new filter by hand. Tighten the filter with the wrench.

Add the new oil – Use the funnel to add the correct amount of new oil to the engine. Check the dipstick to ensure that the oil level is correct.

Check for leaks – Start the engine and let it run for a few minutes. Check underneath the vehicle for any oil leaks.

Dispose of the old oil – Pour the used oil into a sealable container and take it to a recycling center or an auto parts store that accepts used oil for disposal.

Record the oil change – Write down the date and mileage of the oil change in your vehicle maintenance log.

Maintaining the Engine Oil

Regular maintenance of your engine oil is essential to ensure that your engine runs smoothly and efficiently. Here are some tips on how to maintain your engine oil:

Check the Oil Level

Check your engine oil level regularly using the dipstick. Park your car on a level surface, turn off the engine, and wait for a few minutes for the oil to settle. Pull out the dipstick, wipe it clean, reinsert it, and pull it out again to check the oil level. Add more oil if necessary, but don’t overfill.

Change the Oil

Regular oil changes are necessary to keep your engine oil clean and fresh. The frequency of oil changes depends on the type of oil you use, driving conditions, and the manufacturer’s recommendations. Typically, synthetic oil can last longer than mineral oil, and high-performance engines may require more frequent oil changes.

Use High-Quality Oil

Choose a high-quality engine oil that meets the manufacturer’s specifications. Cheap or low-quality oil may not provide adequate protection, and their quality may not be consistent. Reputable brands have a proven track record of providing high-quality engine oil and will stand behind their products.

Use the Right Type of Oil

Use the type of engine oil recommended by the manufacturer. Using the wrong type of oil can damage your engine and void your warranty. Refer to your vehicle’s owner’s manual for the recommended type of oil.

Check the Oil Filter

The oil filter should be changed at the same time as the oil. The oil filter helps to remove contaminants from the oil and prevent them from circulating in your engine. A clogged oil filter can reduce oil flow and cause engine damage.

Maintain the Engine

Maintain your engine properly to minimize wear and tear on your engine oil. Follow the manufacturer’s recommended maintenance schedule, including changing the air filter, spark plugs, and other components.

Regular maintenance of your engine oil is essential to ensure that your engine runs smoothly and efficiently.

Benefits of Engine Oil 

Engine oil is a critical component of a vehicle’s engine that provides many benefits, including:

Lubrication: Engine oil helps to lubricate the moving parts of the engine, reducing friction and wear. This helps to extend the life of the engine and improve its performance.

Cooling: Engine oil also helps to cool the engine by carrying heat away from the moving parts. This prevents the engine from overheating, which can cause damage and reduce performance.

Cleaning: Engine oil contains detergents that help to clean the engine by removing contaminants and deposits that can build up over time. This helps to prevent clogs and blockages that can reduce performance.

Corrosion protection: Engine oil contains additives that help to protect the engine from corrosion and rust, which can cause damage and reduce the life of the engine.

Seal conditioning: Engine oil also helps to condition the seals in the engine, preventing leaks and reducing the risk of engine damage.

Regularly changing the engine oil and using the correct type of oil for your vehicle can provide these benefits and help to keep your engine running smoothly and efficiently.

Last Point

Engine oil is a critical component of your vehicle’s engine system, and choosing the right engine oil and maintaining it properly is crucial for ensuring the optimal performance and longevity of your engine. Engine oil lubricates, cools, cleans, and protects your engine from wear and tear, heat, and contaminants.

Different types of engine oil are available, including mineral, synthetic, and semi-synthetic oil, and it is essential to choose the right type of oil for your vehicle based on its specifications, performance requirements, driving conditions, budget, brand reputation, and change intervals.

Regular maintenance of your engine oil is essential to ensure that your engine runs smoothly and efficiently. You should check the oil level regularly, change the oil and oil filter as recommended, use high-quality oil, use the right type of oil, and maintain your engine properly.

Rate this post

Leave a Comment