About spark plugs
04-12-2017, 02:01 PM
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That link doesn't say not to use it, it just implies that its use isn't necessary on these plugs and that using it may alter torque values - therefore requiring additional caution when torquing plugs to avoid possible thread damage.
Originally Posted by NGK Spark Plugs
1. Anti-seize
NGK spark plugs feature what is known as trivalent plating. This silver-or-chrome colored finish on the threads is designed to provide corrosion resistance against moisture and chemicals. The coating also acts as a release agent during spark plug removal. NGK spark plugs are installed at the factory dry, without the use of anti-seize. NGK tech support has received a number of tech calls from installers who have over-tightened spark plugs because of the use of anti-seize. Anti-seize compound can act as a lubricant altering torque values up to 20 percent, increasing the risk of spark plug thread breakage.
NGK spark plugs feature what is known as trivalent plating. This silver-or-chrome colored finish on the threads is designed to provide corrosion resistance against moisture and chemicals. The coating also acts as a release agent during spark plug removal. NGK spark plugs are installed at the factory dry, without the use of anti-seize. NGK tech support has received a number of tech calls from installers who have over-tightened spark plugs because of the use of anti-seize. Anti-seize compound can act as a lubricant altering torque values up to 20 percent, increasing the risk of spark plug thread breakage.
04-13-2017, 01:50 PM
#4
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As with everything else in life, its about common sense. A very small amount of anti-seize, per spark plug, will not harm anything and will prevent galling especially in aluminum.