How often should iridium spark plugs be replaced?

Conventional spark plugs need to be replaced every 30,000-50,000 miles. Long-life (iridium- or platinum-tipped) spark plugs need to be changed between 60,000 and 150,000 miles, depending on the vehicle.

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.

How do I know if my iridium spark plugs are bad?

When the engine starts making a knock-like, rattling, or pinging noise or causes strong vibrations, the spark plugs or the plug wires are the issues.

Do iridium spark plugs really make a difference?

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.

Do iridium plugs fail?

Most modern iridium and platinum industrial spark plugs are rated by their manufacturers to last for at least 3500 hours of continuous use. However, some plugs inevitably fail or degrade before their time is officially supposed to be up. 2000 hours is the average lifespan of a standard industrial spark plug.

How Long do NGK Iridium Spark Plugs Last? - A 100k Mile Review

Can you clean iridium plugs?

However, if you wish to deep clean your spark plug , ingrained dirt can be removed using a wire brush . Be careful when doing this, as some abrasive brushes can damage the spark plug electrodes and compromise performance.

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.

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.

Do NGK Iridium spark plugs increase horsepower?

Yes, NGK iridium spark plugs can increase horsepower. By providing more spark to the firing tip, you combust more fuel, producing more horsepower.

What spark plugs are better than iridium?

The platinum increases the durability of the plug, adding 100,000 miles to its service life. Platinum spark plugs can generate more heat than their iridium counterparts, ensuring lesser buildup of debris. This kind of spark plug is best if you have a new car equipped with an electronic distributor ignition system.

Should I Gap NGK iridium spark plugs?

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.

How do I know if my spark plugs need to be changed?

What are the longest lasting spark plugs?

NGK 6619 Iridium IX Spark Plugs snagged the top pick in our spark plug comparison because they offered the best mix of high-performance, fuel efficiency, durability, and dependability. Featuring an iridium construction, these high-quality spark plugs provide a longer lifespan than copper and platinum spark plugs.

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.

Do iridium plugs burn hotter?

Denso Iridium Power plugs feature the heat range at the end of the part number. ... Denso plugs get colder the higher the number, hotter the lower the number. Starting with part # IK20 (heat range 20), a colder plug would be # IK22, a hotter plug would be # IK16.

What is the difference between NGK iridium and Laser Iridium?

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.

Can I use platinum spark plugs 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.

Will iridium spark plugs increase mpg?

When you use an Iridium TT spark plug, you're not just improving your customer's fuel efficiency, you're also improving the lifetime of their engine. Whereas older spark plugs last around 40,000 km, Iridium TT spark plugs will continue to perform after 120,000 km – that's 3 times as far!

Which is better Denso Iridium or NGK iridium?

Denso plugs are installed on almost every automobile model manufactured in Japan. The iridium used in them has a superior hardness. The electrode's diameter in these plugs shrinks more than an NGK. For this reason, Denso plugs won't last longer than NGK units but they will be better at producing powerful sparks.

What spark plugs are better than NGK?

Iridium Spark Plugs – Service Life

The actual iridium electrode looks like it could last the life of the car. Denso Iridium spark plugs use a much thinner electrode than even the NGK.

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.

Can I use wd40 to clean spark plugs?

WD-40 removes carbon residue and keeps moisture away from spark plugs and spark plug wires. WD stands for Water Displacement, so if your spark plugs are wet or you need to drive moisture away from ignition distributors, WD-40 will do the trick.

Are copper spark plugs better than iridium?

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.

Can I clean iridium spark plugs with carb cleaner?

Can you clean and reuse iridium spark plugs? You might try brake or carburetor cleaner if it is oil soaked or compressed air for gas soaked. Don't use a spark plug cleaner that has an abrasive material it will ruin the platinum tip.