Owner of a Auto Store told me that Honda City has NGK Laser Iradium Plugs NGK IZFR6K13 by default and Honda Gurantee 100k miles.
He was surprised that why i am replacing the plugs on just 7000km .
Whereas i considered that Honda use regular spark plugs and I am really surprised that no body guided me in this fourm about that hidden fact .
A forum friend offerd me Denso IK 20 for Rs4500 whereas Honda Geniune NGK IZFR6K13 Laser Iradium Spark Plugs cost Rs 3600 only.
I dont know what is the performance advantage of Denso IK 20 or VK20 over NGK IZFR6K13 ?
i think just of time killing and wastage of money vs performance gained.