Not all spark plugs are created equal, and choosing the type that's best for your car can ensure you get the most value from your purchase.

Read on about some of our magazine readers tech questions from spark plug reach to pinion angling. Only at www.hotrod.com, the official website for Hot Rod Magazine.

2019 CarMD® Vehicle Health Index™ Finds Ignition Coils, Spark Plugs and O2 Sensors Tie for Most Commonly Diagnosed Check Engine Repair ...