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The spark plugs are the mighty little friends of your vehicle. Thanks to the magical spark that gives your engine a start and set your life in motion. But How Long Do Iridium Spark Plugs Last?
A Spark Plug can last an extended period, but it can’t last forever. Do you want this magic to stay a bit longer? Then go for the iridium ones. It doesn’t have an infinite lifetime, though. So, better plan for a replacement before your old buddy expires.
We’re here to offer a little guidance. Let’s explore the best iridium plugs on the market. Don’t miss the tips at the end. It might save you from frequent replacing.
Different Types of Iridium Plugs and Their Lasting Period
Before we divert into this question, let’s first give you a basic idea about iridium spark plugs types. Different one works differently, so you must have proper knowledge about their mechanism and properties.
- Double Iridium firing pin and ground electrode inlay provide 4X longer...
- 0.6mm fine wire firing pin provides superior ignitability and performance
- 360 Degree continuous laser weld fuses corrosion resistant iridium firing...
- Iridium is the latest in spark plug technology and is an exact replacement...
- Iridium composition provides a high melting point and great strength, helps...
- Iridium offers excellent engine idle stability, reliable cold starting,...
Last update on 2023-09-11 / Affiliate links / Images from Amazon Product Advertising API
1. Denso Iridium Plugs:
The Denso Iridium spark plug is a favorite one for the motorist. It is specially designed to improve performance. Moreover, as it relies on iridium, it makes this plug last far longer than platinum and copper plugs and reduces maintenance costs. The shape of the electrode makes room for more effortless startups. And temperature control improves the fuel economy.
One downside is that the price is a bit higher. However, you won’t need to replace the plugs for a long time. So, ultimately, they cost less in the long run.
a. Denso Iridium Power Series:
Usually, one can drive 60,000 to 80,000 miles on an unchanged vehicle. However, the Nickel ground electrode in this series starts wearing out gradually. Consequently, the firing power and other benefits will reduce. We recommend you change the plug after 30,000 miles for better functioning.
b. Denso Iridium TT Series:
This series combines a 0.4 mm iridium center electrode with a 0.7 mm platinum ground tip. Due to the twin-tip technology, it shows higher performance. It has more excellent spark capability, which results in complete combustion and increased fuel economy.
You can use it for more than 100,000 miles without any replacement.
c. Denso Long Life Iridium Plugs:
This one also has an iridium center and a platinum ground electrode. It has the longest service period among all other Denso products. It will probably last longer than you want to keep your car/ motorbike.
In some OE type design, there is a particular resistor or electrode. These applications can last up to 120,000 miles.
2. NGK Iridium Plugs
a. NGK Iridium IX:
This one has an iridium center electrode, but the ground electrode is a traditional nickel construction. Therefore, the ground electrode will wear out first. Typically, you can expect 60,000 to 80,000 miles on an unaltered motor.
b. NGK Laser Iridium Spark Plug:
It has an iridium center and a platinum ground electrode. In a regular engine, they would last longer than you wish to keep your car. All of these NGK versions have an OEM design. Depending on that design, some also have a particular resistor or electrode. This design typically lasts 80-100k miles.
3. ACDelco Professional Iridium Spark Plugs:
This plug works fine for both the performance-driven and the older vehicles and can last up to 100,000 miles. The iridium tip not only minimizes spark erosion but also prevents compression leakage. It also increases fuel efficiency as the spark gap stays the same during its lifetime. It’s hard to find any issues with them.
One drawback is that while they work great on some vehicles, their performance is average. But you are surely going to notice at least some difference after you replace your old plugs for these iridium ones.
4. Bosch Double iridium OE Replacement Spark Plugs:
The Bosch is another longest living plugs out there. The double-iridium design enables them to last up to four times longer than the regular ones. It aids to maximize reliability, heat control, and wear resistance. Moreover, a 0.6mm ultrathin tip is there for a stronger yet smooth ignition to boost the performance.
You are going to change your vehicle before you ever need to change these plugs. But this super performance comes at a higher price. As many other options will last up to 100,000 miles or more than that, you might want to skip these.
5. Other OEM Design Plugs:
The Autolite Iridium XP and Champion iridium spark plug also bring the features of OEM design. They come with iridium made fine wire center electrode and a platinum tipped ground electrode. Normally, the life expectancy is about 100,000 miles for these plugs.
Important Tips for Proper Maintenance:
We all know that, without proper care, nothing lasts long. So, we have to give importance to maintaining more to make the best outcome.
Here are the maintenance tips. Before going for a replacement, you must do yourself a favor by looking into it.
1. Don’t Leave It Until the Last Mile:
Replacing spark plugs at the last moment can be difficult. As the plug has been in the cylinder head for many miles, corrosion can make it hard to pull out, and the cylinder head can be destroyed. It’s always better to go for a replacement before reaching the limit.
2. Don’t Use Anti-Seize Stuff:
Spark plugs should be installed dry. Sometimes, anti-seize compounds are to make future replacement easier. However, it’s not recommended as it increases the risk of tightening the plug and damaging the threads.
3. Keep in Mind the Heat Range:
Heat range refers to the temperature range of the spark plug within which it should work fine. The plug must heat enough to get rid of dirty deposits but not so hot that it causes preignition or explosion.
So, have a double check when you change your plug so that it matches the temperature specifications.
Last update on 2023-09-11 / Affiliate links / Images from Amazon Product Advertising API
Frequently Asked Questions:
We have already opened up the most common curiosity about a spark plug in our article above. But most of the people ask these common questions, so we listed them here for your satisfaction.
How Long Can I Store an Unopened Spark Plug?
Honestly speaking, your unopened spark plug can live in there for eternity. It only starts damaging when it gets in a touch of moist weather. So, find a dry and cool place to keep your plug.
How Do I Know If My Spark Plugs Are Damaged?
If your car/ motorbike isn’t running at the usual speed, the probable reason can be a faulty spark plug. You may also have backfiring issues or face difficulties while starting. In any case, do an immediate inspection to fix it up.
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Conclusion:
The answer of the question of ” How Long Do Iridium Spark Plugs Last ” depends on two factors. One, the quality of the plugs. High-quality spark plugs will last longer than lower-quality ones. Another is the condition of your engine.
You might need the replacement frequently if your engine is not in its best condition. So, it is crucial to examine your spark plugs for unexpected wear and change them accordingly.
Thanks for being with us! Let us know whenever you face any difficulties.
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