Waleed80
Sorry, I was away for some time.As far as the different spark plugs are concerned,my car had Bosch four tip plugs from the former owner. I am still using them as they are fine till now.I just once got cleaned them.My car does not give any problem.Anyhow,as far as I know, the experts and the platz/vitz owners are of the opinion that while the stock plugs can give u the optimum output, there is no need to spend extra money to get the special ones. Otherwise, there is no harm in it if the temperature range is same.