OEM: Motorcraft "Finewire Platinum"--Gap: .035
After-Market: NGK Iridium IX--Gap: .054
Is that normal? I fully understand that Iridium fires hotter and stronger and all that but I was just wondering if this was a normal occurrence. .035 to .054 is a heck of a difference.
After-Market: NGK Iridium IX--Gap: .054
Is that normal? I fully understand that Iridium fires hotter and stronger and all that but I was just wondering if this was a normal occurrence. .035 to .054 is a heck of a difference.