I wants to change my Engine Plug, i am using Honda City '07. please suggest is it necessary to tune up engine like tappet and throttle body cleaning etc.
cUrrently Alhamdullah my car is giving me no problem at all but i have travelled around 15k so i was thinking of changing plugs.
also recomend which plug is best NGK or DENSO? city have 8 plugs
so cant afford expensive one.