EcoBoost with High Pressure Cylinder = Change Spark Plugs Often (or check gap)

[@hpjunkie69]

Thanks for posting. A great reference to show how center Electrode gets worn and damaged. Plugs seem to be very Rich indications

[@alanparker7777]

If you used Motorcraft plugs they would last longer. I get 60k miles out of them and pull a 6k pound trailer 90% of the time., 2018 F-150