What are the different types of spark plugs? Generally spark plugs are divided by 3 categories depending on the material it’s used.
There are copper, platinum and iridium spark plugs with both iridium and platinum also come in a “double” variant.
What is the double variant anyway? Well, don’t worry we will uncover them all in this article, so stay tuned for the types of spark plugs only at dimulti.id!
Table of Contents
Types of Spark Plugs
1. Copper
Copper is the oldest and the most basic and well known type of spark plug that has been around for centuries.
Using a solid copper core with a nickel alloy electrode, the copper wire is significantly softer than its platinum or iridium counterpart, which makes it have a much shorter life span.
However, the copper spark plug has its own uses, it is mostly used in older, lower-voltage system vehicles.
And because of the high conductivity of copper, it’s also being used in some of the high performance vehicles.
2. Platinum
As its name implies, the platinum spark plugs use a platinum disc that is welded to the end of the center electrode.
With that being said, platinum spark plugs could withstand the higher-energy and more demanding system because of the hard characteristics of a platinum.
Other than that, platinum also has a longer lifespan, which is up to 80-100K miles.
This type of spark plug became popular in the late-80’s when the ignition system began to change from distributor-based, to coil pack or wasted spark systems.
And because of that, the stronger and more reliable plug is needed to provide the improvement of the ignition system.
The platinum spark plugs also tend to run hotter, thus preventing fouling and buildup of deposits which in turn increases its lifespan.
Also Read: “Benefits of Iridium Spark Plugs“
3. Double Platinum
Double platinum spark plugs are advanced ignition components designed to improve vehicle performance and durability.
Unlike standard spark plugs, they are equipped with platinum disks on both center and side electrodes-which makes them more durable and effective.
The platinum, which is resistant to high temperatures and wear, extends the life of the spark plug, reducing the need for frequent replacement and providing better spark stability.
With double platinum spark plugs, fuel combustion is more efficient, leading to optimal engine performance and reduced exhaust emissions.
This is especially beneficial for vehicles with modern ignition systems, such as the DIS “wasted spark” system, which requires spark plugs with the ability to work on both electrodes with different polarities.
In a nutshell, double platinum spark plugs are a smart investment to improve the quality and reliability of your vehicle.
4. Iridium Spark Plugs
Iridium spark plugs were introduced in the mid-2000s alongside the increased use of coil-on-plug systems.
These spark plugs have a center section with a very small diameter, thanks to the hardness of iridium metal exceeding that of platinum, which reduces the voltage required to produce a spark and improves combustion efficiency.
Iridium is also known for its resistance to extreme temperatures and corrosive environmental conditions, making it an ideal choice for high-performance and heavy-use vehicles.
While Iridium spark plugs tend to cost more than other types of spark plugs, the long-term benefits are often greater.
They can improve fuel efficiency, reduce emissions, and extend replacement intervals.
If your vehicle’s manual recommends Iridium spark plugs, this additional investment should be considered to ensure optimal performance and keep your engine in the best condition possible.
5. Double Iridium Spark Plugs
As with dual platinum spark plugs, dual Iridium spark plugs offer two rare metal disks that are specially designed to enhance performance and durability.
However, the advantage of dual Iridium spark plugs lies not only in the number of metal plates, but also in the quality of the Iridium metal itself, which is highly resistant to wear and extreme temperatures.
These spark plugs are equipped with a center electrode and a mass electrode made of iridium, which together produce a more consistent and powerful spark, and improve fuel combustion efficiency.
Dual Iridium Spark Plugs are designed to withstand a wide range of demanding driving conditions, from extreme high temperatures to sustained high speeds.
Their ability to withstand harsh conditions makes them ideal for high-performance vehicles or demanding driving situations.
In addition, dual Iridium spark plugs can provide up to four times longer service life compared to standard copper spark plugs, reducing replacement frequency and optimizing overall engine performance.
Also Read: “When to Change Spark Plugs of Your Vehicle?“
There you have it! The 5 types of spark plugs!
However, choosing a quality spark plug is a must to ensure the optimum performance of your engine.
But, how do you identify high quality spark plugs for your vehicle? You can spot the SNI logo on the packaging of your spark plugs.
What is an SNI logo? The SNI logo indicates that the spark plug of your choice has already been tested and certified for its performance, quality and also safety aspects.
The SNI logo also signifies that the manufacturer is obeying the Indonesian rules and regulation.
The regulation of spark plugs is clearly stated in SNI 2929: 2008.
