I've been reading through the forums and the debate about whether or not to use anti-seize on the NGK Iridiums. Seems NGK put out a bulletin not to use it because it can distort torque values. I read these after I installed my new plugs on my 4 cylinder accord. I used the anti-seize, then torqued them in to honda spec 13 ft/lbs of torque. If the anti seize made me overtorque them, how much latitude do I have before I do damage to the threads? Do you think I'm ok to leave them in, or do I need to back them out and reinstall with less torque? I've heard 30% reduction in torque when anti seize applied. Please help! Car runs great, no issues there. Just concerned about potential future damage if I did something wrong.

 

I think you're OK. I've used antisieze on sparkplugs for a long time.

 

Thanks Jim, that's a great comfort.

 

I use it on all of mine as well.....just don't over do it and life it good IMO.

 

It's more likely to break the threads if you goop it up with antiseize & then TIGHTEN! it without a torque wrench.

 

I have used ASC for years.

I still do it old school, hand tight then 1/4 turn. Never had an issue.

The only caveat I know of is to only install plugs in a cold engine, as the torque of a steel plug on a hot head can strip the threads on the aluminum head. HTH.

 

Never used anti-seize and still never had a problem.

 

Seems like you're good-to-go for the next 150,000 miles.
Don't see any issue in the meantime from my perspective.