|
The advantage that platinum and iridium plugs have over "normal" plugs is that they last a long time. No performance gain (some people even argue that they give worse performance in certain situations, tho' I'm unconvinced). Why are you replacing your platinums? And on a related note, why'd you get those four-prongers in the first place? Dontcha know that the spark is only gonna use one of 'em at a time? Just go with good ol' NGK (Nissan's choice).
|