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The Importance of Spark Plugs 

Discover the crucial role of unsung heroes of combustion, known as Spark Plugs that keep your vehicle running smoothly. For optimal engine performance, get them serviced or replaced through OkayKer.

What is a Spark Plug?

A small part often overlooked yet crucial for your vehicle's operation is known as a spark plug. To begin with, spark plugs are tiny devices that create a powerful spark to ignite the air-fuel mixture inside the engine. This makes the engine start and allows the vehicle to run smoothly.

Source: OkayKer


Types of Spark Plugs 

Let’s delve into the intricacies and types of spark plugs. There are usually two types of spark plugs. Iridium and Non-Iridium. 

  1. Iridium Spark Plugs

They are made with a special metal called iridium, which is known for its durability and high melting point. They are designed to provide better ignition, improved fuel efficiency, and longer lifespan due to reduced electrode wear.

2. Non-iridium Spark Plugs

They are typically made of materials such as copper or nickel alloy. They are less durable and tend to have a shorter lifespan as compared to Iridium ones. Hence, they provide weaker ignition and require more frequent replacements than Iridium spark plugs. 

Why are Spark Plugs important? 

Combustion Efficiency

 A spark plug is like an “ignition switch” of a car’s engine, allowing it to start smoothly. A good spark plug ensures complete combustion, which means that the fuel is burned efficiently. This means you can go farther on the same amount of fuel, resulting in improved mileage and cost savings. 

Engine performance

 If the spark plug is faulty, it can result in rough idling and misfires, causing the engine to run rough. This can lead to a decrease in power, acceleration, and overall engine performance. Replacing the damaged spark plugs ensures efficient combustion, which leads to improved acceleration and engine power. Thus, a properly functioning spark plug will result in improved power output, thereby helping to enhance your vehicle’s engine performance. 

Fuel efficiency

Spark plug combustion directly influences fuel economy. If your vehicle gives low mileage per liter of fuel, then it is important to replace the spark plugs. By doing so, the air-fuel mixture is effectively burned and less fuel is wasted, which results in improved mileage and fuel economy. 

Emission control

 Faulty spark plugs contribute to higher levels of harmful emissions, such as carbon monoxide and hydrocarbons. Due to incomplete combustion, the efficiency of the catalytic converter, responsible for reducing emissions is also impacted. To counter this issue and the negative environmental impact, it is important to regularly inspect and replace spark plugs, as needed. This ensures proper combustion, as the air-fuel mixture is ignited effectively, resulting in less amount of harmful pollutants in the atmosphere. 

When should you get the spark plugs changed? 

If you experience symptoms like rough idling, reduced fuel efficiency, engine misfires, or reduced engine performance, it indicates that your spark plugs need to be replaced. The replacement of spark plugs differs for each vehicle, depending on the vehicle’s specifications and the type of spark plug used such as copper, platinum, or iridium. However, replacing Iridium spark plugs every 60,000km- 70,000km is recommended, while non-iridium spark plugs should be changed every 20,000km-25,000km. At OkayKer, we offer spark plugs with a price range spanning from Rs. 400 to Rs. 4000.

Like tiny cogs in a grand machine, spark plugs are vital for a vehicle’s smooth operation, igniting the fuel to keep your engine running.


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