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Monthly Archives: May 2025

Are Spark Plugs Universal for All Cars?

Are Spark Plugs Universal for All Cars?

Spark plugs play a crucial role in how your engine operates. Without them, your car wouldn’t start, accelerate, or run smoothly. When it's time to replace them, many drivers often wonder: are spark plugs universal, or can I pick up any set from the parts store? Using the wrong type of spark plug will negatively impact your engine’s performance, reduce fuel efficiency, and even cause damage over time. If you plan to replace your spark plugs or just want to better understand your engine, here’s what you need to know.   Spark Plug Fitment Every engine is designed with a specific spark plug size, heat range, and electrode configuration in mind. Engineers carefully choose these specifications to ensure the plug ignites the fuel-air mixture at just the right moment. A plug that’s too long, too short, too hot, or too cold can interfere with that timing or even make physical contact with internal engine parts. The result could be anyth ... read more