Two plug questions: Who long does it take a plug to get color? Whats the difference in carbon and al

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07-29-2003, 12:21 PM

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Two plug questions: Who long does it take a plug to get color? Whats the difference in carbon and al

I checked my plugs today and read online how to read them. My porcelin(ms) is white and I have dots on them. How do I tell if its carbon or alumium. How long does it take the porcelin to turn grey or off white? I've been using these plugs for about a week or two and they new besides the dots on them. I guess I should change plugs and up my fuel and see what happens, correct?

Nick