Get Subaru platinum spark plugs. Shop Subaru Dual platinum ignition plug review & Subaru Spark plug cross reference. Browse Subaru Iridium twin tip spark plugs. Maintaining the spark plugs in your Subaru is crucial for optimal performance and fuel efficiency. Regular inspection can reveal tell-tale signs of wear, such as difficulty starting, misfiring, or decreased acceleration, indicating a need for replacement. To extend spark plug life, ensure your engine is tuned and use high-quality fuels. When selecting new spark plugs, choose from iridium, platinum, or copper options, each offering different benefits in longevity and performance. Iridium plugs, while more expensive, provide superior durability and performance under extreme conditions. Always opt for OEM-grade materials for a seamless fit and trouble-free installation, and apply anti-seize on the threads to prevent future corrosion. By following these tips, you can enhance your Subaru's ignition system, ensuring a smooth online purchase with the added confidence of expert-backed advice.