so i just changed my sparkplugs yesterday, it was really easy thought it would be alot harder. my question is what does the color of the plug mean. i know you can tell weatherthe car is runnig richor lean anybody know??

 

The lighter the color, the leaner it is. You want like a medium-dark gray color.

 

mine had a thin brown layer covering them, looked like rust after i cleaned that they were black/ dark grey. make sense???

 

Sounds like coolant on the plugs

 

i doubt it, theres no smoke coming out and it runs like a champ

 

Usually brown color is coolant.