The Importance of Replacing Spark Plugs at the Recommended Interval

William Carroll • December 17, 2025

Don’t Ignore Your Spark Plugs: A Simple Service That Protects Your Engine

    Changing your spark plugs at the recommended interval is one of those small maintenance items that can make a big difference in how your vehicle runs. At Carbon Valley Garage, we often see cars come in with rough idling, poor fuel economy, or sluggish acceleration—and worn spark plugs are a common cause. Spark plugs are responsible for igniting the air-fuel mixture in your engine, and when they’re working properly, your engine runs smoothly, efficiently, and reliably.

     

     As spark plugs age, they wear down and collect deposits that weaken the spark. When that happens, combustion becomes inconsistent, which can lead to engine misfires, hard starts, and a noticeable drop in performance. Your engine may have to work harder just to keep up, burning more fuel and producing higher emissions in the process. Over time, neglected spark plugs can also put added stress on ignition coils and even the catalytic converter, turning a simple maintenance item into a much more expensive repair.


     Replacing spark plugs at the manufacturer’s recommended service interval helps prevent these problems before they affect your daily drive. New spark plugs restore proper ignition, improve fuel efficiency, and help your engine deliver the power it was designed to produce. This straightforward service often results in smoother acceleration, easier starts, and better overall engine performance.

     

     Staying on top of spark plug replacement is an easy way to protect your engine and avoid unnecessary repairs. At Carbon Valley Garage, we follow factory maintenance guidelines to keep your vehicle running at its best. If you’re not sure when your spark plugs were last replaced, our team can inspect them and help you stay ahead of potential issues—saving you time, money, and stress down the road.

By William Carroll September 9, 2025
How Proactive Maintenance at Carbon Valley Garage Can Keep Your Vehicle Running Strong and Save You from Costly Repairs