Shop Saturn Ignition Plug Wires & Saturn Ignition Plugs Replacement. Browse Saturn Ignition Plug. Explore Saturn Spark Plugs. Order Best Saturn Combustion Plugs. For Saturn owners, maintaining spark plugs is critical for optimal performance, and recognizing when they need replacement is key—look for rough idling, misfires, or a noticeable dip in fuel efficiency. To extend their lifespan, ensure your Saturn undergoes regular tune-ups and uses high-quality spark plugs that match your engine's requirements. When choosing spark plugs, consider iridium or platinum for durability and better performance. Copper plugs, while cost-effective, may not last as long. Installing the correct spark plug for your Saturn enhances combustion efficiency, leading to smoother starts and a more responsive engine. Always opt for spark plugs that promise longevity and superior conductivity to maximize your Saturn's potential.