how long do iridium spark plugs last

How Long Do Iridium Spark Plugs Last?

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Jeffrey
August 10, 2022
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Iridium spark plugs have a longer lifespan than copper spark plugs and are less likely to foul.

They also provide better fuel economy and lower emissions.

Iridium is a hard, brittle metal that is more resistant to wear and tear than copper.

But how long do Iridium spark plugs last?

Iridium spark plugs are designed to last five times longer than traditional copper spark plugs.

Depending on the driving conditions and the type of vehicle, iridium spark plugs last anywhere from 60,000 to 100,000 miles before they need to be replaced.

When it comes time to replace them, there is no need to gap them as they come pre-gapped from the factory.

It was first introduced in the early 1990s and quickly gained popularity among automakers and consumers alike.

Many manufacturers began using iridium in their original equipment spark plugs, and aftermarket companies followed suit.

It is also more conductive, which means it can create a stronger spark that ignites the air/fuel mixture more effectively.

Today, iridium spark plugs are widely available and offer a great alternative to copper spark plugs.

If you’re looking for improved performance and longevity from your spark plugs, consider upgrading to iridium.

You may pay a bit more upfront, but you’ll save money in the long run by not having to replace them as often.

And, of course, your vehicle will benefit from better fuel economy and lower emissions.

Different Types Of Spark Plugs Lifespan

Spark plugs are available in a variety of different brands and types on the market.

Here are the different types of spark plugs:

Iridium Spark Plugs

The iridium spark plugs are made to endure a long time.

As a result, they may endure up to 100,000 miles.

Denso Iridium Spark Plugs

This spark plug has an iridium core electrode and a nickel ground electrode.

This type of spark plug can last 60,000 or 80,000 miles.

Copper Spark Plugs

These are substandard spark plugs in comparison to platinum or iridium spark plugs.

This copper type of spark plug can only last 10,000 to 20,000 miles.

E3 Spark Plugs

The lifespan of the e3 spark plugs is over 100,000 miles.

They have a 100,000-mile life expectancy.

This indicates that this is a high-quality spark plug from a renowned brand.

Platinum Spark Plugs

The platinum spark plugs, too, are comparable to the iridium spark plugs.

These are intended to have a greater lifespan than the low-cost copper spark plugs.

They may last 100,000 miles if subjected to a suitable situation.

NGK G Power Spark Plugs

The NGK G spark plugs have an iridium core.

The ground electrode is made of nickel, which wears down first.

This type of spark plug can only last 40,000 to 50,000 miles.

NGK Laser Iridium Spark Plugs

Platinum is used in the construction of these spark plugs, with a central iridium electrode and a ground platinum electrode.

If used in cars with regular engines, these spark plugs would last longer.

They have an expectancy of 80,000 and 100,000 miles, depending on the application.

Iridium Vs Platinum Spark Plugs

Iridium and platinum spark plugs are both designed to last longer than copper spark plugs, but there are some differences between them.

Iridium plugs are more durable and have a higher melting point, so they can withstand more heat.

Platinum plugs are less durable but have a lower melting point, so they can be used in applications where the engine produces less heat.

Iridium spark plugs are more expensive than platinum spark plugs, but they offer several advantages.

Iridium plugs last longer and provides better ignition, while platinum plugs are more likely to cause misfires.

Platinum plugs also require more maintenance, as they must be replaced more often.

Copper spark plugs are the most common type of spark plug on the market, and for good reason – they work well in a wide variety of engines and conditions.

That said, they do have some drawbacks that you should be aware of before making a purchase.

First and foremost, copper spark plugs are not as durable as their iridium or platinum counterparts.

They will eventually wear out and need to be replaced more often than other types of spark plugs. Additionally, copper spark plugs are not as heat-resistant as other types of plugs, so they may not perform as well in high-performance applications.

Still, for the average driver, copper spark plugs are a great choice.

They’re affordable, easy to find, and they get the job done.

If you’re looking for a reliable, all-purpose spark plug, copper is the way to go.

Overall, iridium plugs provide better performance and longevity, making them the better choice for most drivers.

Difference Between Iridium and Copper Spark Plugs

Iridium spark plugs are more expensive than copper spark plugs, but they offer several advantages.

Iridium plugs last longer and provides better ignition, while copper plugs are more likely to cause misfires.

Copper plugs also require more maintenance, as they must be replaced more often.

Copper spark plugs are the most common type of spark plug on the market, and for good reason – they work well in a wide variety of engines and conditions.

That said, they do have some drawbacks that you should be aware of before making a purchase.

First and foremost, copper spark plugs are not as durable as their iridium or platinum counterparts.

They will eventually wear out and need to be replaced more often than other types of spark plugs.

Additionally, copper spark plugs are not as heat-resistant as other types of plugs, so they may not perform as well in high-performance applications.

Still, for the average driver, copper spark plugs are a great choice.

They’re affordable, easy to find, and they get the job done.

If you’re looking for a reliable, all-purpose spark plug, copper is the way to go.

Overall, iridium plugs provide better performance and longevity, making them the better choice for most drivers.

What Makes Iridium Spark Plugs Get Damaged Fast?

Iridium spark plugs are designed to last five times longer than traditional copper spark plugs, but they can still be damaged.

The most common cause of damage is improper installation.

If the plugs are not installed correctly, they can become cross-threaded or otherwise damaged.

Improper installation can also cause the plugs to become loose, which can lead to misfires.

Another common cause of damage is engine vibration.

Over time, the constant vibration of the engine can loosen the spark plug and cause it to become damaged.

This is why it’s important to check your spark plugs regularly and tighten them if necessary.

Finally, extreme heat and cold can damage iridium spark plugs.

If the plugs get too hot, they can melt or break.

If they get too cold, the metal can become brittle and break.

This is why it’s important to choose a spark plug that is rated for the specific application.

Iridium spark plugs are designed to last longer than copper spark plugs, but they can still be damaged if they are not installed correctly or if they are subject to engine vibration or extreme temperatures.

If you are having trouble with your iridium spark plugs, consult a mechanic or spark plug specialist.

how long do iridium spark plugs last

How often should you replace your spark plugs?

Most carmakers recommend replacing spark plugs every 30,000 to 50,000 miles.

However, if you drive in dusty or sandy conditions, or if you frequently tow a trailer, you may need to replace them more often.

You should also check your owner’s manual for specific recommendations.

When it’s time to replace your spark plugs, be sure to use the same type that came with your vehicle.

If you’re not sure which type to use, consult a qualified mechanic or spark plug manufacturer.

Replacing your spark plugs is a relatively easy and inexpensive task that you can do at home with the right tools.

However, if you’re not confident in your ability to do it yourself, you can always take it to a professional.

If you’re looking for improved performance and longevity from your spark plugs, consider upgrading to iridium.

You may pay a bit more upfront, but you’ll save money in the long run by not having to replace them as often.

And, of course, your vehicle will benefit from better fuel economy and lower emissions.

How Do Spark Plugs Last Longer?

Spark plugs last longer nowadays for a variety of reasons.

First, advances in metallurgy and manufacturing have resulted in stronger, more durable spark plugs.

Second, better engine designs and fuel mixtures create less stress on spark plugs, allowing them to last longer.

Finally, most carmakers now recommend replacing spark plugs every 30,000 to 50,000 miles instead of the old standard of 20,000 miles.

This gives them more time to “settle in” and reach their full lifespan.

1. Elimination Of The Lead Fouling Problem

The main factor that contributes to the longevity of spark plugs is the elimination of the lead fouling problem.

In the past, gasoline contained lead, which deposits on the electrode of spark plugs, causing them to fail prematurely.

The removal of lead from gasoline in the 1970s largely solved this problem.

2. Better Engine Designs And Fuel Mixtures

Another factor that has contributed to longer-lasting spark plugs is better engine design.

Today’s engines are more efficient and run at lower temperatures than older models.

This puts less stress on spark plugs and allows them to last longer.

Additionally, today’s fuel mixtures are cleaner burning and deposit less carbon on spark plugs, further extending their lifespan.

3. Advances In Metallurgy And Manufacturing

Finally, advances in metallurgy and manufacturing have resulted in stronger, more durable spark plugs.

Today’s spark plugs are made of materials such as iridium and platinum that are much harder and more resistant to wear than the copper and nickel used in the past.

These materials allow spark plugs to last much longer than their predecessors.

While many factors contribute to the longevity of today’s spark plugs, the elimination of lead fouling is the primary reason why they can now last 100,000 miles.

So if you’re looking for improved performance and longevity from your spark plugs, be sure to use ones that are designed for use with today’s unleaded gasoline.

FAQ’s

How often should I replace my spark plugs?

It is generally recommended that you replace your spark plugs every 30,000 miles or so.

However, it is a good idea to consult your vehicle’s owner’s manual for specific recommendations.

What are the symptoms of bad spark plugs?

If your spark plugs are worn out or damaged, you may experience engine misfires, reduced fuel economy, and increased emissions.

In severe cases, engine failure can occur.

What causes spark plugs to fail?

Spark plugs fail due to normal wear and tear, but they can also be damaged by deposits of oil, carbon, or other materials.

These deposits can build up on the spark plug over time, eventually causing it to fail.

How can I prevent my spark plugs from failing?

You can help prevent your spark plugs from failing by regularly changing your oil and using the proper grade of oil for your vehicle.

You should also have your spark plugs checked and cleaned periodically by a qualified mechanic.

What are the consequences of driving with bad spark plugs?

If you drive with bad spark plugs, you may damage your engine and decrease its efficiency.

In extreme cases, engine failure can occur.

Therefore, it is very important to replace your spark plugs when they become worn out or damaged.

Do all cars have spark plugs?

Yes, all cars have spark plugs.

Spark plugs are essential to the internal combustion engine and must be replaced periodically.

The frequency with which they need to be replaced depends on the make and model of the vehicle, as well as the driving conditions.

However, most carmakers recommend replacing spark plugs every 30,000 to 50,000 miles.

What happens if I don’t replace my spark plugs?

If you don’t replace your spark plugs, your engine will eventually stop running.

This is because the spark plugs are responsible for igniting the fuel in the engine, and without them, the engine cannot run.

Additionally, driving with worn-out or damaged spark plugs will damage your engine and decrease its efficiency.

Therefore, it is very important to replace your spark plugs when they become worn out or damaged.

What are iridium spark plugs?

Iridium spark plugs are a newer type of spark plug that promises long life and better performance than traditional spark plugs.

However, they typically cost more than traditional spark plugs.

Whether or not they are worth the extra cost is up to the individual.

What are platinum spark plugs?

Platinum spark plugs are a newer type of spark plug that promises long life and better performance than traditional spark plugs.

However, they typically cost more than traditional spark plugs.

Whether or not they are worth the extra cost is up to the individual.

Are there any special considerations for changing spark plugs?

When changing your spark plugs, it is important to consult your vehicle’s owner’s manual for specific instructions.

Additionally, it is always a good idea to have a qualified mechanic change your spark plugs if you are unsure of how to do it yourself.

Jeffrey

Jeffrey Bryce is an experienced motorcycle rider with years of experience caring for motorcycles. His natural fondness for motorcycles have made him come up with LetsGoForARide.com, which is dedicated to answering and teaching you how to care for your bike with the care it requires. LetsGoForARide is the one of his important lifework in reaching out to communities of motorcycle enthusiasts on how to take care of their bike and choosing the correct spare part.