I'm about to replace mine and I'd like to know if I should put antiseize on em. I put new ones on when I bought it in 2010 but I didnt put antiseize on. Should I this time? I bought and will be using autolite 3923. (05 v6)

 

If the autolite plugs have zinc plated threads, don't use it. If they are a basic steel, unplated metal of a dark dull color then use anti-seize.

I've never used anti-seize on any zinc plugs, and never have a problem breaking them loose. Also, zinc plated ones have a weaker shell than can break if overtightened, and anti-seize often makes it hard to get correct torque because it lubes the surface to some extent.

 

I do on my cars that have platimum plugs that stay in for 100k miles. For the dak, changing them every 30k I never needed it.

 

I use dielectric grease on mine

 

I would use antiseize. Can't hurt and it might help. And basically costs nothing to do.

Do the newer engines have aluminum heads? If they do, it's a no brainer.

 

Yes, use anti-seize. But use it VERY sparingly. It's conductive and can short out your plug if it melts and runs onto the insulator.

 

I really suggest not using it for zinc plated plugs. The zinc plating nullifies the problem of steel into aluminum. It probably won't hurt... (if the right amount and safe compound is used) but it won't help enough to worry about it. If it's shiny, it's zinc plated. If it's black or dull/obvious bare metal, then it's not plated.

NGK released a tech service bulletin to dealers and shops about using antiseize with zinc plated plugs. They stated that their non-plated plugs required a sensor safe antiseize, but use of antiseize with their plated plugs could lead to overtightening which could lead to stripping or breakage of the plug itself.

If you must use it, against this suggestion, then be certain to use sensor safe compound. It doesn't take much to ruin the o2 sensors.

 

Yes I use anti-seize on all spark plugs. And dielectric grease on the wires or coil packs.

 

Yes. X2

 

I use antiseize on all plugs, and torque accordingly. If anything, we have seen more accurate torque measurements because the antiseize (if on all threads and not caked on) eliminates thread interference, therefore making the torque more accurate. I also use dielectric grease in every "wired" connection...even if it has a weather pack connector.