Quote:
Originally Posted by M. Murphy
Are we to ignore Porsches technical bulletin to not use anti seize?
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Yes, once again proving the everything you may read does not necessarily apply.
Porsche’s bulletin on the use of anti seize came as the result of many European anti seize being switched to non metallic and dielectric in nature formulations for environmental reasons, which can reduce current flow across the plug gaps, and lead to misfire issues. North American anti seize are for the most part based on fine metal paste (aluminum, copper, and nickel), and therefore both electrically and thermally conductive, eliminating the electrical problems.
And if you have ever pulled plugs out of aluminum heads after lots of miles, and found the plug threads that used to be in the heads still attached to the plugs, you would understand why the use of anti seize is critical. We change literally hundreds of plugs every year, in everything from lawn mowers to Ferrari’s, and they all get anti seize, and not one has ever come back for misfire issues, or ever had the plug removal destroy the threads in the cylinder heads. Anti seize is cheap insurance.