Spark plugs are an essential component of your car’s ignition system. They create the spark that ignites the air/fuel mixture, powering your vehicle. Over time, spark plugs wear out and become less efficient, leading to issues like misfires. It’s important to monitor your spark plug’s lifespan and replace it before it completely fails.

Understanding the Different Types of Spark Plugs

There are several types of spark plugs available, each with its own set of materials and characteristics.

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Copper Spark Plugs

Copper spark plugs are the most common type you’ll find. They have a nickel alloy central electrode and a larger diameter, requiring higher voltage to generate the necessary electric current. However, copper spark plugs have a shorter service life, lasting between 10,000 to 20,000 miles.

Platinum Spark Plugs

Platinum spark plugs, on the other hand, last longer than copper spark plugs. They feature a platinum disc central electrode, which can generate more heat and reduce debris buildup, resulting in a longer service life. While they can be more expensive, platinum spark plugs can last up to 100,000 miles.

Double Platinum Spark Plugs

Double platinum spark plugs are designed for cars with a distributor ignition using a waste spark system. These spark plugs reduce the wear gap between them, as they fire twice in the compression and exhaust stroke cylinders. This system causes uneven wear, with the plugs in the positive polarity position wearing down their ground electrode faster. Double platinum spark plugs are ideal for this setup.

Iridium Spark Plugs

Iridium spark plugs have the longest service life of all types. They can last over 120,000 miles or approximately 3,000 to 4,000 hours of engine usage. The quality of gas can also affect their lifespan.

Recognizing the Symptoms of a Faulty Spark Plug

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Knowing the signs of a bad spark plug is crucial for proper maintenance.

Slow Acceleration

A faulty spark plug can cause your car to respond poorly during acceleration, as it fails to provide the necessary electric pulses at high speeds.

Inferior Fuel Economy

An optimal spark plug burns the air/fuel mixture efficiently, but a worn-out spark plug can reduce fuel efficiency, leading to higher consumption.

Misfiring Engine

If your engine sputters or runs unevenly, it may be due to a faulty spark plug. Without a proper spark, the air/fuel mixture won’t ignite consistently.

Rough Idling

A spark plug nearing the end of its life cycle can cause rough idling or abnormal vibrations when the engine is at rest.

Difficulty Starting

A dead or faulty spark plug can make it challenging to start your car, sometimes preventing the engine from starting altogether.

Frequently Asked Questions About Mopar Spark Plugs

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Here are some common questions regarding spark plugs:

How much do spark plugs cost?

The cost of spark plugs depends on their material. Regular plugs usually cost less than $10, while high-quality ones like platinum or iridium can go up to $25. The number of cylinders in your vehicle also affects the total cost.

What is the labor cost for spark plug replacement?

If you prefer professional installation, spark plug replacement can cost between $40 and $350, depending on your engine type. For example, a four-cylinder engine may range from $60 to $140, while a V6 engine with six cylinders could cost up to $320 due to the need to remove the intake manifold for access.

Should I replace my spark plug wires?

The replacement interval for spark plug wires depends on the type of spark plugs you’re using. Standard plugs typically require replacement every 30,000 to 40,000 miles, while high-quality plugs can last up to 100,000 miles.

Upgrade Your Spark Plugs with Mopar Online Parts

For durable, high-quality spark plugs, consider Mopar Online Parts. We offer genuine Mopar spark plugs at discounted rates. Improve your fuel economy, engine performance, and overall driving experience with our reliable products. Don’t settle for used or aftermarket parts. Visit our website today to take advantage of our exclusive deals.

If you have any questions or need assistance with your purchase, our in-house experts are ready to help. Trust Mopar Online Parts to provide the perfect spark plugs for your engine’s performance needs.

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