For God's sake why not Platinum or Iridium? I just changed to Autolite Iridiums and gapped them .060 like I keep hearing people say you shouldn't do, gap them please people (It's easy with the proper gapper not the slide type). I ran Autolite Double Platinums for 75 thousand miles. The Iridiums feel smoother and the Power is noticeable as far as plugs go. I'm a mechanic in the real world and any technology that increases the life of a part means less chance of breaking things by having to replace them quicker.
