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platinum vs iridium spark plug

Iridium vs. Platinum Spark Plugs

Spark Plugs are an essential part of your car’s engine because they help ignite air and fuel to create combustion in the cylinder. It’s one of those things that just works without you ever really thinking about it. But if your car doesn’t start or runs poorly, a bad spark plug could be the culprit. It’s time to replace the spark plug. 

You might be thinking, why to choose a specific spark plug if all spark plugs function the same. However, the truth is that each differs in quality, durability, performance, and lifespan. When choosing the best spark plugs in the market, there are two types: Iridium and Platinum. Which one should you choose for your car? The answer is not so simple. It all depends on what type of driving style you have, where you live, and what kind of engine your vehicle has. This article will discuss the differences between these two spark plugs and help you decide which one is right for you.

platinum spark plug life

What Are Iridium Spark Plugs?

The iridium spark plug is a type of automotive spark plug that uses Iridium to create a hotter, more intense flame. This provides better combustion and cleaner emissions than other plugs. The melting point of Iridium is up to 4,471 degrees Fahrenheit, which is three times the melting point of copper. They can also be used in high-performance applications where the engine requires higher compression ratios and increased fuel octane levels for performance reasons. 

They are designed to last up to four times longer than traditional platinum or copper plugs. This is because they’re made from a metal that doesn’t corrode and can withstand higher temperatures without breaking down. They also have a unique design that provides more power, better fuel economy, and improved acceleration. 

What Are Platinum Spark Plugs? 

Platinum Spark Plug is a type of spark plug with a platinum center electrode and an iridium ground electrode, which provides superior performance over other plugs. With a melting point of 3215 degrees Fahrenheit, it can last much longer than copper spark plugs that can withstand upto just 1984 degrees Fahrenheit. 

There are two varieties of platinum plugs to choose from – one designed for use in wet conditions and another designed for use in dry conditions. The wet-condition platinum plugs are perfect if you live in an area with high humidity or rain all year long. If you live somewhere where it doesn’t rain much, then the dry-condition platinum plugs will be a better choice for you. 

laser platinum spark plug

Which Is A Better Spark Plug? – Iridium or Platinum

To get an insight into a better spark plug, let’s know the pros and cons of each. 

Iridium Spark Plugs 


Better Performance

Do you know Iridium Spark Plugs are harder than the platinum ones? This is the prime reason why the former spark plugs offer better performance than the latter one. Also, it lasts longer and doesn’t need replacement as often. In general, Iridium spark plugs are estimated to last for at least 60,000 miles. It can easily touch 120,000 miles as per your vehicle. 

Use less voltage in comparison to platinum and copper spark plugs 

Iridium Spark Plugs have a lower voltage requirement which means that they produce less heat than platinum. This makes them ideal for engines with high compression ratios or turbochargers and those with aftermarket modifications such as nitrous oxide injection systems (NOS).

High durability

Iridium spark plugs offer great durability and can make your vehicle run like new again. They are made with the highest quality materials to last longer than other types of plugs on the market today. And they’re guaranteed to work in any engine, so you don’t have to worry about compatibility issues. Plus, with these spark plugs, you can get back on the road without worrying about breakdowns or expensive repairs!

iridium spark plug advantages and disadvantages


A bit hefty in price

Undoubtedly, Iridium Spark Plug offers the best performance and even lasts longer than platinum and copper spark plugs. Owing to such characteristics, these plugs are quite expensive. Therefore, those who are on a shoestring budget; can’t afford this spark plug. 

Platinum Spark Plugs 


Last longer than copper spark plugs 

Platinium spark plugs come with a shorter lifespan than the Iridium ones, but they last longer than copper spark plugs. The average lifespan of a copper plug is about 30,000 miles, while platinum can go up to 100,000 miles before needing replacement.

Affordable pricing

If you are looking for a budget-friendly spark plug, resort to a platinum spark plug. It offers good performance and decent durability at such a price. 

Less wear and tear on the engine 

Since platinum doesn’t corrode as easily, you’ll get less wear and tear on your engine from corrosion. So if you want to keep your car running strong for years to come, switch over to platinum today. 

Installing Iridium vs Platinum Spark Plug


Less durable than Iridium Spark Plugs 

Platinum spark plugs are less durable than Iridium Spark Plugs. They can last up to atleast 30,000 miles before they need replacing. On the other hand, Iridium Spark Plugs can last up to atleast 60,000miles before they need replacing. The lifespan of an Iridium plug is double that of the platinum one. 

Low in performance

Platinum spark plugs are less superior in performance in comparison to Iridium ones. They are not as efficient and can cause engine problems like misfires or hesitation.

Bottom Line 

Now, after having a closer look at both types of spark plugs- you have to decide Iridium Spark Plug or Platinum Spark Plus? If you’re looking for a more durable sparkplug that will last much longer, then go with an Iridium plug instead of a Platinium one. You’ll save money in the long run and have peace of mind knowing your car is running at its best performance all day, every day.

Though Platinium plugs are less expensive than Iridium, they are not as efficient and can cause engine problems like misfires or hesitation. If you want to get the most out of your vehicle, we recommend using Iridium Spark Plugs instead.