How Often Should Spark Plugs Be Changed on an EcoBoost? The Real-World Answer
Ford lists 100,000 miles as the spark plug replacement interval for most EcoBoost engines. That number is accurate for the plug itself under ideal conditions, but it does not tell the full story for turbocharged direct-injection engines in real-world use. A significant number of EcoBoost owners who follow the 100,000-mile spec discover plugs that are […]