Have never tried Iridium plugs in my Like. I have thought about using Cox glo plugs. Whata you guys think?
IIRC, the glow plugs use platinum for superior ignition of the alcohol that might have gotten mixed in with your nitro.
The iridium, besides being harder and resistant to erosion, might serve better igniting the alcohol element in our present day blend of fuel.
Spendthrift that I am, it is very difficult for me to fork out the cash for an expensive plug ! Tears, and all !
The probability of galling a sparkplug thread in a cylinder head is definitely worth that extra money !
NGK does Not advise use of an anti-seize compound on their plugs.
Yet I DO use a very small amount of the silvery compound, just in case.
2nd hand qualified experience tells me it's use is valid down to 14k ft in seawater... Works for me !
redk