Why Does Motor Oil Need Additives?

Oil is the lifeblood of a car. It keeps the components healthy and makes sure the parts keep on moving. There is a lot more that goes into your oil than you might think, however, depending on your purposes and how you use your car, you may want to consider a motor oil additive. These specially-formulated chemicals can help improve your engine’s performance and longevity without breaking the bank.

Modern oils are better than older oils, yes. But are they engineered with a speciality in mind? No – they are general lubricants for a wide range of operating conditions. If you want the best performance or the longest wear protection in severe conditions, you need to look for a specialist. That’s where we come in.

Why Does Motor Oil Need Additives?

For most regular cars, motor oil additives may be all-purpose and function. Usually, these additives decrease engine wear and friction and can increase fuel efficiency. More specific issues, such as rust, pollution or engine smoking, can be solved by other additives. 

With the following ingredients, some common issues are often discussed. Within a single additive, all of them can be found:

Viscosity Index Improvers (VIIs)

Viscosity applies to the oil thickness, which defines how quickly the piston passes through it. The oil will stick and turn gummy when the viscosity is too high. It will flow rapidly if it’s too low, closer to the consistency of water. It doesn’t even have patience for its different advantages to be left on the metal as the oil travels this fast. With the temperature, viscosity also varies. VIIs may help restrict this activity, holding oil around temperature ranges at a more steady viscosity.

Corrosion inhibitors

A vehicle cannot escape the elements of nature. It has to face water, salt, wind on a regular basis. Vehicles being made of metal parts need to be protected against such elements so as to increases the life of the vehicle and also the safety. The Corrosion Inhibitors maintain the engine in good condition, and avoiding rust and corrosion will help. Avoid sudden breakdowns or accidents by using these additives

Anti-wear agents

These chemicals tend to protect machine parts over time from wear. To create a shield, they usually form a film on the surface of the metal. One of these is zinc dialkyldithiophosphate (ZDDP), from which older cars will benefit, in particular. An significant part of corrosion resistance is zinc. New cars do not require it as much, however so oil producers, by necessity, avoided using zinc.


Another inhibitor is designed to clear the metal and body parts both internal and external from the effects of residues that accumulate over time. These residues lead to lower performance or breakdown. Detergents help avoid the accumulation of residues on metal parts and can neutralise such acids.


Dispersants and detergents act together regularly. This will help dissolve any debris or chemicals in the liquid, stopping the components from binding to it and becoming sludge.

Benefits of using supplements for engine oil

With all these choices, You might wonder if additives to motor oil would work. The solution depends on your specifications. For your vehicle and your transmission, the motor oil supplement you want needs to be correct, so make sure you meet the requirements. Although motor oil is not a must for your car to operate, its service, efficiency and longevity can be enhanced. Usually, motor oil right out of the bottle also has a limited percentage of additives, but with aftermarket options, you can further boost the performance. 

Overall, some of the advantages of using additives for motor oil include:

  • Reducing friction
  • Reducing wear
  • Removing and preventing sludge and buildup or blockage
  • Increasing your engine’s lifespan

You will find them too if you have more basic requirements, such as zinc or high-mileage therapies. Our renowned Engine Care Products at Naredi are the best go-to for most cars and will maximise the life and efficiency of your engine.

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