Quote:
Originally Posted by WeeYari
Really? Never heard of that.
I don't buy it. Torque would be measured by the resistance between contact surfaces, not how slippery the threads are.
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The lubrication of the anti-seize reduces friction between surfaces of the threads and changes the torque. The exact same way oil inside the engine reduces friction between rotating parts. IDK about the 10% thing but usually if a torque rating doesn't call for lubrication, don't lube it.
Even with that said I only apply the smallest amount of grease to the threads so they don't rust on wheel stud. Anti-seize as I found from personal experience can drastically change the torque rating.
But on spark plugs, they aren't torqued, they are set to usually an amount of rotation to compress the gasket.