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      11-26-2012, 10:45 AM   #14
gpb
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Drives: 335i Cabrio
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Quote:
Originally Posted by morphius909 View Post
There is a lot of speculation that if you put on antiseize, that so called torque setting is not valid anymore
Not really any speculation, adding antiseize invalidates the torque value if the manufacturer didn't specify to use it. There *is* speculation as to whether it's needed or not, but I won't get into that as it's been a long time since I lived in the Rust Belt.

Torque is a measure of the sliding friction between the threads as you tighten the bolt. Add antiseize and you change the coefficient of friction, which means you risk over or under torquing the bolts if you go by the specified torque value.

If you must use something on the threads different from the manufacturer's specification, supposedly you can use the K values to figure the new/correct torque values. I'd be really cautious doing this and recheck torque periodically to avoid any unpleasant surprises.
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