I know the manual says for double sided platinum, but I read in many pages that cooper plugs are the best ones to improve performance and they conduct electricity better than platinum and iridium, but they have the shortest life span. carsdirect.com/car-repair/copper-spark-plugs-vs-iridium-and-platinum-understand-for-top-performance
Copper spark plugs?
- Thread starter alacran1
- Start date
Platinum was installed for long life and corrosion resistance. You will not get a noticable gain in performance one way or the other.