isn[t copper by nature hotter than iridium?cheez80 wrote:imo, iridiums aren't worth the price you pay. the performance of the iridium is the same as a copper, but the only reason to buy iridium is that it lasts as long as copper.
therefore, if you change your spark plugs every oil change (which i do), coppers are a way, way, way better bang for your buck.