What are the longest lasting spark plugs?

Since platinum is harder, it holds its sharp edge much longer than a conventional spark plug, up to 100,000 miles. Longevity is a key advantage of platinum spark plugs. Another advantage of platinum spark plugs is that they run a little hotter, which burns deposits off the spark plug better and helps prevent fouling.
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Can spark plugs last 200 000 miles?

Spark plugs

If maintained well, they can last 100,000 miles. But by the 200K mark, you could be overdue for a third set of plugs.
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Which type of spark plug is best?

Iridium. The best spark plugs on the market boast an iridium construction. Iridium spark plugs give you even better gas mileage, performance, reliability, and longevity than double-platinum plugs.
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How long do spark plugs really last?

A standard copper spark plug has an average life span of 10,000-20,000 miles. Silver plugs, used for older vehicles, can last up to 20,000 miles. Expensive iridium spark plugs or platinum spark plugs can last 60,000 miles. Extended life spark plugs or long life spark plugs can last 100,000 miles.
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How long will iridium spark plugs last?

Generally, an iridium spark plug can last for 3000-4000 hours of engine runtime or up to 100,000 miles or more. While an iridium spark plug is made to last longer than platinum or copper core spark plugs, the iridium plug isn't made equal. Iridium spark plugs from various brands may have different life spans.
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The Longest Lasting Spark Plug In The World!



Is iridium or platinum better?

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.
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Are NGK Laser Iridium plugs worth it?

Iridium spark plugs are the most expensive spark plug model on the market, but in many cases they are worth the investment, as the premium price also comes with high performance and reliability.
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How can I make my spark plugs last longer?

Cautiously extract the spark plug from its place by using a steadfast spark plug socket twist. Then, saturate it in a carburetor cleaner or a thinner liquid that seems like diesel, kerosene, or any other alcohol blend.
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How many miles do double platinum spark plugs last?

Double platinum spark plugs are generally more durable than the single platinum and are cheaper than iridium ones. Like long life spark plugs, they can last about 100,000 miles.
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What causes spark plugs to go bad fast?

Overheating. Repeated overheating of the spark plug tip can cause the plug to prematurely fail. Overheating can be caused by many things like pre-ignition and a malfunctioning cooling system. Pre-ignition can lead to heat building up in the combustion chamber causing the spark plugs to fail.
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Why are NGK spark plugs better?

Modern engines demand more power while using less fuel, shortening the life of traditional iridium and platinum spark plugs. NGK's patented ruthenium technology stands up better to wear to bring maximum durability and performance to your engine.
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Do high end spark plugs make a difference?

Installing high-performance spark plugs can smooth out a rough idle and get your motor purring immediately. Pulstar spark plugs can give your engine more power, a quicker throttle response, and a more stable, longer-lived engine.
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Which is better copper or iridium spark plugs?

Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.
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Can spark plugs last 300000 miles?

If you are getting 300,000 miles from spark plugs that is amazing. Lots of miles on spark plugs tends to wear the center electrode. But as long as you are not experiencing misfire then you are probably OK. I would not go past the recommended mileage for the plugs you have.
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Can a car last 500000 miles?

THERE is no one secret to getting your car to live to a ripe old odometer reading. Luck could get you there, but it is no surprise that many vehicles that have reached 200,000, 400,000 and even 500,000 miles have received extraordinary care and maintenance, often with the owners doing the routine work themselves.
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What are signs of a bad spark plug?

What are the signs your Spark Plugs are failing?
  • Engine has a rough idle. If your Spark Plugs are failing your engine will sound rough and jittery when running at idle. ...
  • Trouble starting. Car won't start and you're late for work… Flat battery? ...
  • Engine misfiring. ...
  • Engine surging. ...
  • High fuel consumption. ...
  • Lack of acceleration.
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Can I use platinum instead of iridium?

Platinum may be harder than copper, but iridium is the hardest among the three, and iridium spark plugs outlast platinum spark plugs by almost twice the mileage. The only issue with iridium is that it costs double the price of platinum with little improvements in performance.
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How long does Denso iridium last?

All Denso long life iridium spark plugs are an OEM design, made for a specific engine. Some feature a special resistor or electrode design, depending on the OE requirements. In their OE application, Denso's long life plugs can last up to 120,000 miles.
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What's the best spark plugs for horsepower?

Best Spark Plugs for Horsepower – Performance – Fuel Mileage (2020 edition)
  • Denso (4504) PK20TT.
  • NGK 3403 G-Power.
  • ACDelco 41-962.
  • NGK Iridium IX.
  • ACDelco 9748RR Wires.
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How long do laser iridium plugs last?

These two plugs perform similarly, due to their fine-wire tip design, but the service interval is different; the Laser Series are typically designed to last 80 to 100 thousand miles, where as the Iridium IX® spark plugs are designed to last 40 to 50 thousand miles.
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Does iridium spark plugs increase performance?

Greater engine power from iridium spark plugs

The spark plug manufacturers are unanimous about the fact that iridium spark plugs can considerably improve the engine power. The advantage is crucial when you need to navigate through difficult driving situations or climb steep slopes.
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What is platinum spark plug?

A platinum spark plug is synonymous with copper spark plugs, with a slight difference in the center electrode, which is made of platinum, welded to the tip of the electrode. The platinum enhances the durability of the plug, enabling it to last for as long as 100,000 miles.
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How long does NGK Laser Iridium last?

NGK gives them a life expectancy of 40-50k miles. But they have to temper their projections as driving conditions and motor modifications differ. Typically we have found you can expect 60,000 to 80,000 miles on an unaltered motor. NGK Laser Iridium Spark Plugs have iridium center and a platinum ground electrodes.
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How often should you change iridium spark plugs?

Long-life (iridium- or platinum-tipped) spark plugs need to be changed between 60,000 and 150,000 miles, depending on the vehicle. The recommended replacement intervals are posted in the Maintenance Schedule, which can be found in the owner's manual or in a separate Warranty and Maintenance brochure for your car.
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Do iridium plugs need to be gapped?

Iridium Power Gapping Tips

In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations.
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