[James Brown]

I blast and clean and gap and ohm all my clients aircraft plugs every 100 hrs and/or at annual. 95% of the time there just fine. only replace if they fail inspection. Most have been going strong for many years and most likely will last longer than me! I pulled my Dodge plugs at 50K just because I wanted to see them. They were great so back in they went. Should get another 50K out of them.