I have Honda City 2005(Manual). I want to know if changing plugs to Iridium or Platinum will increase pick and fuel economy. Which Choice is better:
- 1 tip platinum
- [B]1 tip iridium
- 2 tip platinum
- [B]2 tip iridium
- 4 tip platinum
- [B]4 tip iridium
i recently installed NGK 1 tip (Copper). Want to know if pick and economy will increase by moving to platinum or iridium?
Moreover, will these plugs affect the coils?