QA

Question: How Long Do Iridium Plugs Last

What’s The Lifespan Of An Iridium Spark Plug? The average, modern iridium spark plug should last for 3-4,000 hours of engine uptime, depending on the gas quality.

How often should I replace iridium spark plugs?

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 many miles will iridium spark plugs 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.

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

Signs that the best iridium spark plugs need replacement The replacement interval is here. Degradation of fuel economy. Taking too long to accelerate. Rough idling in the engine. Misfiring in the engine. Difficulty in starting the car.

Do iridium spark plugs wear out?

Replacement spark plugs made of high-quality metals such as platinum or iridium can last 100,000 miles or more in many cases, while standard spark plugs are only good for about 40,000 miles. Since spark plugs are continually firing as the engine is running, they eventually wear out.

Can iridium spark plugs last 200000 miles?

Most iridiums are designed for around 100,000 miles. All spark plugs have design limits and all spark plugs wear over time.

Are 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.

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. Cost to replace: $100 to $300.

Is iridium or platinum better?

Iridium is arguably eight times stronger and six times harder than platinum. It has a higher melting point of about 700 degrees compared to platinum. Platinum spark plugs wear out faster than iridium spark plugs. Iridium plugs are said to be more durable compared to platinum plugs up to 25% more.

What is the longest lasting spark plug?

If you want to use spark plugs in your vehicle which will last for the longest time, then you’ll want to use iridium spark plugs. It is estimated that iridium spark plugs will last for at least 60,000 miles. However, they’ve been known to go up to 80,000 miles, or even 120,000 miles, depending on the vehicle.

How often should you replace spark plugs?

And as a general rule, we recommend replacing spark plugs every 30,000 miles, which falls in line with most manufacturers’ recommendations. You can check your owner’s manual or the manufacturer’s website for information specific to your make and model vehicle.

Can you clean iridium plugs?

You can clean the good plugs with a wire brush, or with a grit blaster, and after cleaning rinse them with a solvent such as carburetor or throttle body cleaner and blow them dry or let them air-dry. Be sure to not leave grit in the cavity around the insulator.

Why are my spark plugs wet with oil?

Worn Piston Rings Each piston inside of your car’s engine has two compression rings and an oil control ring. If the rings are worn or stuck, oil will be able to enter the combustion chamber, resulting in wet oil and/or ash deposits on the tip of the spark plug.

Will iridium spark plugs increase mpg?

So, platinum- and iridium-coated plugs with a copper core won’t boost horsepower or fuel economy; they’ll just last longer and perform more consistently. In the real world, though, you’re unlikely to see any measurable change in fuel economy using iridium instead of platinum plugs.

What is the life of spark plugs?

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.

Can I replace iridium spark plugs with platinum?

You can use iridium or platinum on older engines no problem. For healthy engines you don’t have to change them as often 🙂 If the engine burns oil – don’t use them. Oil will still foul a spark plug and then you’ve just ruined a more expensive plug.

Should I disconnect battery when changing spark plugs?

No. The battery will not cause any problems when changing the plugs. The one thing to avoid is accidentally dropping a tool and having it contact the positive battery terminal and the car body. If this occurs, you will get a spark and possibly blow a fuse.

What happens when you over tighten spark plugs?

After the plugs were seated, they could turn them with a plug wrench until they felt resistance. Over-tightening a spark plug in an aluminum cylinder head can entirely damage the spark plug thread, requiring spark plug replacement.

Do iridium spark plugs increase power?

Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs. Iridium spark plugs feature a fine wire center electrode that is designed to conduct electrical energy better and increase firing efficiency.

Can I use copper spark plugs instead of iridium?

yes,, if the heat range is the same… but you some times can’t put a platinum in a vehicle that calls for standard plugs.. Most spark plugs use a copper core. (Yes platinum and iridium plugs too).

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.