A spark plug ignites the air-fuel mixture inside your engine’s combustion chamber, creating the controlled explosion that powers your vehicle. Without spark plugs, your engine won’t start or run properly. They also help improve engine performance, fuel efficiency, and throttle response.

Replacement intervals depend on the type of spark plug:

• Copper: 20,000 – 30,000 miles

• Platinum: 60,000 – 80,000 miles

• Iridium: Up to 100,000 miles

Always follow your owner’s manual for specific recommendations. Timely replacement improves fuel economy, power, and reliability.

Watch for these symptoms:

• Engine misfires or rough idle

• Hard starts or stalling

• Loss of power or sluggish acceleration

• Drop in fuel economy

• Check Engine Light on

These are clear signs it’s time for new spark plugs.

The right spark plug depends on your engine and driving needs:

• Copper: Best for older vehicles

• Platinum: Great for daily drivers

• Iridium: Ideal for modern engines and performance upgrades

Check your vehicle manufacturer’s recommendations before buying.

Yes! With basic tools, you can replace spark plugs at home. Follow these tips:

• Work on a cool engine

• Use the correct gap and torque

• Replace one plug at a time to avoid wiring mistakes

If you’re unsure, have a professional mechanic handle the replacement. DIY Guide

Worn spark plugs can cause engine misfires, poor fuel efficiency, hard starts, and even catalytic converter damage. Replacing them on time prevents expensive repairs and keeps your engine running smoothly.

Yes. Iridium and double platinum spark plugs provide stronger sparks, improved combustion, and longer lifespan. They’re ideal for high-performance vehicles, tuned engines, and modern cars.