Spark Plugs


Spark plugs do one thing and they do it well – ignite the fuel and air mixture in the engine's cylinders to generate the power that moves the vehicle down the road. A spark plug doesn't last forever, and needs to be changed periodically, as indicated by the vehicle's owner's manual or a trusted mechanic. Using spark plugs beyond their recommended service life can lead to poor engine performance and may even leave you stranded. Read More

Learning how to change spark plugs is easy. One of the simplest, confidence-building ways to practice is by doing the job on a lawn mower, chainsaw or other piece of simple landscaping equipment. Start with a visit to Advance Auto Parts where they'll recommend the best spark plugs for your vehicle, and provide tips for completing the job.

Different spark plugs have specific characteristics designed for the engine they're going into. That's why it's important to replace a dirty or worn spark plug with an exact match. In addition to keeping an eye on your vehicle's mileage, other signs that your spark plugs might need to be changed include rough idling, hard starts, stalling, and poor fuel mileage.

Spark plug technology continually evolves, with some spark plugs today containing platinum for improved firing and a longer service life. Other high-tech materials in spark plugs, such as iridium, are also designed to deliver high performance and a longer life as compared to standard plugs. Know the best spark plugs for your vehicle – either by replacing them with an exact match or by consulting with an automotive expert.