I recently installed Autolite spark plugs into a 2003 Honda accord. After installing, car began to randomly misfire. After driving car 35 miles, car blew 3 back side piston rings and catalyst converters. My $10 plugs are costing me $8700. Would the Autolite plugs be too hot or simply a mis-firing plug? Any suggestions on testing the spark plugs, etc?

My advice to Honda owners is only use the exact NGK spark plugs that came in the car or the next colder NGK plug recommended by Honda. I am not a fan of cross-referenced plugs. Similarly, GM vehicles should stick with the specified ACDelco plugs and Fords should stay with the specified Motorcraft plugs. I've heard of lots of problems from people who have tried Bosch plugs.