Anti- sieze on NGK TR55 plugs

[SSDiv6]

I use anti-seize, however, not all anti-seize products are the same. I recommend either a Copper or Nickle based high temperature antiseize. The Champion brand that Curtis Reed showed in the earlier post is a very great product used in aviation.

Based on recommendations from a friend that managed a NASCAR engine shop for many years, I use Copaslip high temp anti-sieze on the spark plug threads. Copaslip makes two products, Copaslip and Molyslip; the one to use is Copaslip without moly. Moly, when exposed to high temperatures may induce corrosion.

Another great product is Jet-Lube NIKAL anti-seize, which is nickel based and the Ford XL-2 High Temperature Nickel Anti-Seize.

Not only I recommend these products for spark plugs, but also with O2 sensors.

Also, proper torque is critical, for the right thread engagement I suggest using the manufacturer specification. I have seen to many plugs that appear to have been installed with a breaker bar. It is also recommended that when you have a sealing washer, torque, loosen and re-torque to compress the washer, making sure you get the proper thread engagement and heat transfer.