the use of anti-sieze compound seems to be controvercial - esp. when used with torque wrench.

FAQ reads: [From AC Delco] Do not use any type of anti-seize compound on spark plug threads. Doing this will decrease the amount of friction between the threads. The result of the lowered friction is that when the spark plug is torqued to the proper specification, the spark plug is turned too far into the cylinder head. This increases the likelihood of pulling or stripping the threads in the cylinder head.


My guess is that there are people of both schools who have been doing it for years and never had any problem either way. Has anyone had a bad time with one of the methods? I'm inclined not to use any.