Sparkplugs

[Supaman]

I recently change sparkplugs and wires about 200 miles ago. It started to miss so I go to check the sparkplugs and the top is a rusty looking color. I got a pic but I don't know how to post it. What causes the sparkplug to look rusty. When I pulled the old ones it looked fine.


I figured how to put up the pic.

 

[superhuaman]

idk about your missing problem, but weird colors are usually just from weird fuel additives