How long are your spark plugs lasting?

[SCAR911]

Got the crazy misfire about 8000 miles ago. Changed the plugs to the colder Ford performance ones and all was good. Well, today it happened again. Feels like the damn motor is come flying out. You guys with a tune going through them this fast?

 

[CigarPundit]

Got the crazy misfire about 8000 miles ago. Changed the plugs to the colder Ford performance ones and all was good. Well, today it happened again. Feels like the damn motor is come flying out. You guys with a tune going through them this fast?

No. I have cold plugs with a tune that I've been running for probably 30k.

 

[V6Raptor]

I change my colder plugs every 15k per Goosetune’s advice and never had a misfire.