The Causes Of Engine Knocking

Engine knocking is a common and serious problem for many drivers. When you are aware that your engine is knocked, take action to fix the problem promptly before your engine is damaged. Choosing the right additive oil can solve this. This article will show you the best oil additives to avoid engine knocking in the long term. You cannot go wrong picking up either of the additives listed below.

Let’s dive into details on what engine knocking is and the main causes of a knocking engine, and what you should do to eliminate them.

What Are The Causes Of Engine Knocking?

Knocking or pinging is an overt sign of premature combustion occurring in one or more cylinders. Don’t hesitate to fix it or you will have to pay a lot.

To solve a knocking engine, you need to be clear about what causes it in the first place. You should know that the engine may be in trouble whenever you notice a strange noise from beneath the hood. Look into this problem promptly.

Engine knocking may originate from several different factors. While some are pretty easy to fix, some are not.

Generally, a knocking sound is most often noticed during the appropriation of the air-fuel mixture. As a result, fuel burns in uneven bursts, which can cause severe problems in the long run. If you don’t fix this problem as quickly as possible, it may even lead to cylinder wall damage.

Factors contributing to engine knocking are:

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Low Octane Rating Fuel

If the octane rating is low, the fuel may cause problems, including engine knocking later.

To avoid this, you should use an optimal octane rating fuel. Manufacturers often recommend the octane rating level. You had better use fuel with even higher ratings than the recommended levels. You can increase the fuel’s octane rating with an octane booster. Thanks to that, you can reduce engine knocking issues.

Improper Spark Plugs or Incorrect Spark Plug Gaps

If you choose non-genuine spark plugs, you may also suffer from the knocking sounds. Every spark plug is designed with a fixed heat range. If the plug is not of the latest standards, it can cause many problems. It is the same scenario if the spark plug gap is not set precisely.

Although these problems sound complex, the solutions are easy. Sometimes, you can even fix the damage yourself. If you’re not able to do that, you can ask for help from an expert.

Carbon Deposits

While fuels are vital for your vehicle’s operation, they also have disadvantages. They form significant carbon deposits in the long run. If you do not take any action to remove deposits, your car will be severely damaged. Engine knocking will be one of the premature signs of these damages.

Using an additive or a fuel injector cleaner can eliminate these carbon deposits.


Lifters are one of the most popular factors causing engine knocking. Whenever you hear this noise, something may go wrong with your lifters.

Lifters keep your engine quiet and boost its performance, ensuring it is always in good condition. These quiet lifters, however, will make noise if they lack lubrication.

Oil Additive Is The Solution For Your Engine Knocking Issues

The use of oil additives is the top solution for engine knocking issues. You have to keep in mind two things. First, you need to maintain your regular engine operation. Periodical service is the key to your engine’s duration. Second, you had better use the best oil additives to ensure your engine works properly. The most common damages, including a knocking engine, can be addressed.

Oil additives quality is gradually improved, so the latest one that fits your engine will be a wise choice.

What Aspects To Think While Buying The Best Oil Additive For Engine Knock?

Before you buy an oil additive, you should check for some factors listed below:


What you need to check with the formulation of an oil additive is whether it contains any solid particles or not. You should not choose the ones with Graphite, Zinc, Copper, or PTFE because they will form deposits and sludge and deposits.

Additionally, the ones made of 100 percent petroleum or synthetic formulation should be on your purchase list.

Ability to Reduce Friction

A lower friction amount will decrease noise. Therefore, you should buy oil additives to form a lubricating layer on the components’ top.


After you consider the formula of an oil additive, you have to ensure whether it goes well with your system or not. Many additives are not compatible with gas systems. Make sure you check it before spending your money.


Another feature to consider is the viscosity of the oil you will purchase. You should choose the oil with lower viscosity than your engine’s existing oil.

Fuel Saving

You need to assess the oil additive’s ability to improve fuel saving if you want to reduce fuel consumption.

Ability to Improve Efficiency

In most cases, the ones that can reduce the friction rate can also increase efficiency. However, this is not true with some additives, so try to avoid them.

Instead, you should opt for ones that hold the ability to drop the operational temperature. When the temperature is lowered, you will see increased efficiency and get significantly higher mileage.

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Some type Oil Additives For Engine Knocking

If you want to choose the best oil additive for your car engine, you need to be acknowledged for what they are and how to use them.

Below are the most common types of oil additives and their strengths:

Detergents: They eliminate excessive carbon deposits. You need to remove these deposits regularly if you want a healthy engine.

Dispersants: These oil additives can remove contamination on any surface by attracting harmful molecules and dispersing them. A dispersant is required for any engine maintenance.

Viscosity modifiers: These additives function as viscosity modifiers. It will preserve the oil’s viscosity even at harsh temperatures.

Anti-foaming agents: These additives increase oil lubrication attributes and decrease the overall oxidation, avoiding oil starvation. An anti-foam agent can prevent creating foam and bubbles in your oil.

Friction modifiers: This additive will erase any friction trace in your oil, giving engine optimization.

Rust inhibitors: This oil additive sticks to the essential components of your vehicle and creates a strong protective guard. The most overt advantage of rust inhibitors is their effective ability to fight against corrosion. 

Antioxidants: Using an antioxidant will be the best way to minimize oxidation damage.

Anti-wear additives: They are good at avoiding metal parts inter-touching.


Above is a basic acknowledgment of oil additives to fix engine knocking issues. We also recommend some brand additives that can work well. We hope you have already found it easier to pick up one for your engine. Don’t forget to service your car regularly to lengthen your car’s lifetime.