Best Oil Additives

In this article, we have reviewed the best oil additives. If you are in a hurry, the table below gives a quick snapshot of the top ones.

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Is your car not working as great as it did when it came from the servicing center? One of the things that you might need to do is to get your oil changed.

You should change your oil and oil filters regularly to increase the longevity of your car engine. Oil lubricates the engine, cleans it, and keeps the part moving at an optimum level.




While the oil itself is essential, you can also add many chemicals to oil to make the car engine perform even better.

These oil additives help improve your engine’s performance and longevity in various ways. One of the important ways is to increase the oil’s viscosity, making it an even better lubricant. 

This article will discuss the best oil additives, the ones that help and flush out the sludge.

Best Oil Additives

Our Top Choice – Sea Foam SF-16 Motor Treatment

The [amazon link = “B0002JN2EU” link_icon=”Best Product”] is our top choice for oil additives because of the following reasons:

  • It’s a Fuel stabilizer
  • Works well as an Injector cleaner
  • Moisture control in fuel
  • Upper cylinder lubricant
  • Best for older engines.

#1 Sea Foam SF-16 Motor Treatment: Engine Cleaner & Fuel Stabilizer

The Sea Foam SF-16 motor treatment is one of the best oil additives available in the market. It is considered one of the most useful additives for older vehicles. The product comes in a simplified kit. 

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The formula is produced with a hundred percent pure petroleum and designed to remove stain deposits and liquefy gum build-up.

Features and Benefits:

  • Best for older engines: This oil additive is very much beneficial for the engines of older vehicles. This additive helps the vehicles to last for a longer time.
  • Economic: This product very much has value for money and is affordable by all. Such economic products help people from all classes afford the best oil additives for their vehicles. 
  • Eliminates deposits and contaminants: The Sea Foam SF-16 reduces content deposits like gum from the engine. It keeps the engine clean and smooth.
  • EPA and PEA certified: This product is EPA and PEA certified as well. The product is thoroughly checked and tested before launch. 

Why should you buy it?

This Sea Foam SF-16 has a fuel stabilizer as well as an injector cleaner. This product also

helps in controlling the moisture in the fuel and devices and de-gels engines.

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You might like to read: Best Motor Oil


#2 Lucas AI Innovations LUC Oil Stabilizer: Reduce Dry Starts & Friction

This additive works on diesel engines in cars, trucks, and tractors. Its main feature is that it modifies the engine oil making it thicker and stickier. In turn, this thickness helps to keep the metal surfaces of engines coated without any foreign solids. The Lucas heavy duty oil additive is an oil stabilizer; it raises the engine’s oil pressure. 

[amazon fields=”B000AS1XYE” value=”thumb” image= “1” image_size= “large” image_align = “center” image_alt = “Lucas AI Innovations LUC Oil Stabilizer”]

Features and Benefits

  • Reduction of noise: This oil additive is known for causing lesser noise while the engine operates. While starting, the engine makes noise, which you can reduce with this oil additive. 
  • Elimination of dry start: This product helps control dry starts. Usually, dry starts cause much noise pollution and also harm the engine.
  • Improves fuel economy: With these oil additives, the engine’s fuel economy is enhanced. The oil additive helps to keep the engine secure and protected, thus lessening frequent use of fuel. 
  • Minimizes engine overheating: This product helps bring down engine overheating. It protects the engine from damage. 

Why should you buy it?

This product reduces the consumption of oil and also increases the expectancy of oil life. This product gives improved results when used constantly.

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#3 Liqui Moly 2009 oil treatment: Anti-friction 

This German-made oil additive reduces friction in the engine. The molybdenum concentration in this additive is high, and it leaves little chemical residues. This additive can withstand high temperatures.  

[amazon fields=”B003U4O414″ value=”thumb” image= “1” image_size= “large” image_align = “center” image_alt = “Liqui Moly 2009 Anti-friction oil treatment”]

Features and Benefits

  • Reduction of friction:  Liqui Moly reduces friction much better than the graphite-based formula.
  • Affordable oil additive: The usage of this product makes oil additives very much affordable.
  • Long-Lasting: This product is long-lasting and durable, thus in a way makes it more economical. 
  • Reduction of noise: This product helps in reducing noises in older engines. It can reduce the noise created when you start the engine. 

Why should you buy it?

This product controls temperature performance and blends with every commercial motor oil. Also, this product is compatible with every filter system.

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You might like to read: Best Synthetic Motor Oils


#4 Best Line Premium Synthetic Engine Treatment: Improve Engine Life

The Best Line is considered one of the premium oil additives available in the market. It is marketed as suitable for all kinds of gasoline engines, including car trucks and motorcycles. The additive coats the engine and reduces wear and tear. It makes the engine more efficient and improves performance. It also improves fuel economy.

[amazon fields=”B0093XZDS4″ value=”thumb” image= “1” image_size= “large” image_align = “center” image_alt = “Best Line Premium Synthetic Engine Treatment”]

Features and Benefits

  • Engine Longevity: This product improves the engines’ longevity and allows them to last for a longer time.
  • EPA and PEA certified: This product is EPA and PEA certified as well.
  • Long-Lasting: This product is quite long-lasting and durable for your car engines.
  • Makes the fuel economic: With the usage of these oil additives, the usage of fuel becomes very economic
  • Reduction of friction: Best Line reduces friction much better than graphite-based formula.
  • Minimizes engine overheating: This product helps in controlling and minimizing engine overheating.

Why should you buy it?

This product reduces the clatter of engines and also minimizes emissions. Also, this product increases the overall mileage of the engine. It is considered one of the best products in the market by the users to improve fuel economy. It also improves performance while prolonging the life of the engine.

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#5 Marvel MM13R Mystery Oil: Cleaner And Lubricator

Marvel oil additives are used in all types of engines. These additives are used in all types of cars, be it 2-tyre and 4-cycle engine oils. The fuel types it supports are diesel, gas, biodiesel blends, and ethanol.

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It is especially effective when it operates for fuel containing ethanol, as ethanol is known for causing rust and corrosion. This additive targets rust deposits and clears them from one’s hood. It is also a very important lubricant that allows engines to run at full power. This additive stabilizes fuels and also helps drivers pick up an easy start.

Features and Benefits

  • Works well with new engines: This product blends and works well with newer engines. It allows them to work well for a long time without much maintenance.
  • Reduction of exhaust smoke:  This is an authentic product and thus creates lesser exhaust smoke.
  • Removes deposits: This product helps in eliminating 99% of the deposits and contents.

Why should you buy it?

This product can be used in all types of engines and is especially better with engines having clocked 5000 miles and more. This product makes the fuel very much economical. FinallyMarvel Modern Mystery oil is the ultimate fuel and motor treatment. It works better with any sort of engine. Its powerful oil eliminates deposits and prevents corrosion. It makes the engine very fuel-efficient, making the vehicle run very efficiently.

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You might like to read: Best Motorcycle Oil


Buyers Guide: Best Oil Additives

Stops Engine leaks

Oil additive stops leaks in the engine by sealing the part that leaks and improves overall performance. This feature also provides longer durability of the engine, so it’s important to check this oil additive feature.

Reduces Friction

This oil forms a protective barrier around parts of the engine to avoid friction and eliminate excess heat. The oil has features that stop the engine from overheating and causing friction. 

Heavy-duty oil stabilizer

Heavy-duty oil stabilizer present in the product helps protect the engine from excessive wear and tear. It ensures engine durability.


Line Premium Synthetic Engine

Reduce Dry Start

The additive you are buying should be combined with engine oil to protect the camshaft lifters and lubricate the vehicle well. This lubrication will ensure that your car engine does not face any challenges while starting.

EPA certification

Some of the oil additives have EPA certification, meaning when the fuel is economical, the emissions go down. Choosing an EPA certified is not only economic and is also very environmentally friendly.

Engine models

One must always look into the engine model before using any oil additives, and if it’s a new car, one must refrain from using the same. Additives must be compatible with the maker and model.

Frequently asked questions: Best Oil Additives.

Can oil additives improve oil pressure?

Yes, most additives improve oil pressure, but that is temporary. If the vehicle shows constant signs of low oil pressure, it must be a serious engine issue. In that case, you must consult an expert.

Is it a must to use an additive for a new vehicle?

No, one must only use additives only after the new vehicle crosses 5000 miles. But the ones with older cars might need additive injection because the engine gets old and worn due to constant juggling. 




How often should one change the oil additive?

You should change it every time the engine oil is changed because the oil additive needs to be adjusted with the engine’s engine oil.

Could Oil additives be used as fuel additives?

No, oil additives are specially designed to be mixed with engine oil; therefore, you should do it with them. Although some oil additives could boost engine performance, they are not what fuel additives desire.


If the engine is the heart of the car, oil can be said to be the engine’s heart. Oil additives improve lubrication, enhance fuel-efficiency, remove blockages and deposits and keep the engine functioning as new.

In our opinion, the [amazon link=”B0002JN2EU” link_icon=”Best Product”] is the best choice among the various options that we have considered. This oil additive has incredible features, and it is the best one for older engines.

The [amazon link=”B0009JKGJW” link_icon=”Second Best Product”] is our next best choice because of its ability to exhaust smoke.

If you are looking for a value for money option, you can also consider the [amazon link=”B003U4O414″ link_icon=”Value for money product”]. It offers great value and features at a very reasonable price point.   

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