How long are iridium spark plugs good for

You will not have to replace it as frequently as you do with the copper plugs. Thus, it is natural for consumers to prefer these spark plugs as they give them the value for money. On top of that, the electrical resistance of iridium is better than copper, which also adds to its performance and longevity. So, you have a clear idea now about the differences that make iridium spark plugs better than the regular ones. It is time to purchase the high-performance plugs for your vehicle.

You will be pleasantly surprised at how durable and long-lasting iridium spark plugs are. Your email address will not be published. The difference between the best iridium spark plugs and regular spark plug. Many spark plugs have nickel-plated threads on the plug shell to prevent corrosion between the steel threads on the plug and the aluminum threads in the cylinder head. Plain uncoated spark plugs offer no corrosion resistance whatsoever when installed in aluminum heads.

Dissimilar metals can react over time causing the spark plug to stick in the head. Advertisement The use of anti-seize compound on spark plug threads to make future replacement easier is not recommended for two reasons: anti-seize acts like a lubricant, which increases the risk of over-tightening the spark plug and damaging the threads in the cylinder head, and it can contaminate the electrode causing the plug to foul and misfire.

Spark plugs should be installed dry and tightened to specifications. On some applications, like to Ford trucks with 5. The plugs tend to stick in the heads, and often break off leaving the tip of the electrode stuck in the head. Some aftermarket replacement spark plugs for these applications are a one-piece design to resist breakage. Replacing the OE plugs before they reach 40, miles can also reduce the risk of breakage. But plug manufacturers have to temper their projections as driving conditions and motor modifications differ.

Additionally, because gradual wear will "round-off" firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. Therefore, NGK gives them a life expectancy of k miles and Denso assigns a recommended replacement interval of 30k miles.

Bosch Double Iridium includes places iridium in the ground electrode inlay as well. These OEM style plugs typically have special features designed for a specific engine and last k miles.

You will need to replace it at the right time to ensure the health of your engine and keeping the acceleration top-notch all the time.

So, here are a few signs that you should watch out for as indications of spark plug replacement. Fouled or dirty spark plugs can affect the fuel economy as the plugs do not have the capacity to efficiently burn gasoline in its combustion cycle.

In the worst case scenario, fuel economy will go down. Hence visit to your mechanic and replace the spark plugs as per application recommendation. There is less power to move the vehicle when it constantly takes too long to accelerate.

The spark plugs might be the issue in this case, and they have to get replaced. However, there might be other issues too in this case, such as dirty fuel injectors, bad fuel filters, or problems with the ignition system.