hope ur all well in ur heath.
i wanted to ask that at my last service frm honda ppl here in sargodha,they took the plugs out to clean,and i saw this brown colored ring made around the plug.i want to ask the experts that what can cause this?is it normal?or theres sum problem?is there anything related to the heat specifications varying? shud i change the plugs back to original or not?
one more thing that the honda mechanic told me to change it to original plugs,he said that this plug is not ok for city.he could nt give any reason.he just said it wasnt ok.i dnt trust these ppl,so i need ur advise
and let me state that its a BOSCH 4 TIP PLUG.