so i walk into halford (no comments) and pull aside one of the workers, hes an ex mechanic.. i ask "so whats the best spark plug?" he says "well you dont want any of the preimum ones, they just break, i always had to put new ones in" so he picks up the cheapy v groove and copper core and says "toss up between these 2, copper core is very good, v groove just as good, what ever you land on "ip dipping it""!!!
i would like to try out these iridum plugs, equally i would like to get any information from what people think, waynne thinks the quad spark plugs are best?
here is some information on the spark plug
http://www.ngksparkplugs.com/techinf...000&country=US