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

 

is my question so dumb? ttt please let me know