A rough running engine...you just had an engine failure, whether you realize it, or not.
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So using that meaning of the words " engine failure " anytime you get a rough running engine caused by a fouled spark plug you have experienced an engine failure?
I'm afraid I do not subscribe to that simplistic an evaluation of what an engine failure is.
But hey Tiger , whatever turns your personal crank and makes you feel like you are living the life ...go for it.
