I don't know a whole lot of chemistry even though I majored in chemistry,
but...
The copper anti-seize grease I use actually has a solid embedded in the
compound.. kinda like copper dust. So, when the petroleum base evaporates,
the copper solid is left behind to lubricate, similar to graphite.
Well, if you put enough of it on and in just the right place, you can
probably get the copper to bind against the threads. Add to that, the
heating and cooling of lug studs and you probably get the copper dust
turning into a consistent solid.
WD-40 or other light lubricants evaporate fairly quick, so they don't have
much of any residual component.
I've always heard you shouldn't put anything on your lug studs. Now, if you
have some that are rusted, I guess it wouldn't hurt. But by simply using
them and changing wheels all the time probably keeps any corrosion off of
them long enough to not warrant the use of anti-seize.
I would leave the studs dry, but YMMV.
Brian
--
Brian Berryhill
http://www.angelfire.com/ms/brianberryhill/
----- Original Message -----
From: "Ian" <ianmcfetridge@earthlink.net>
To: "teamnet" <autox@autox.team.net>
Sent: Monday, June 26, 2000 10:35 AM
Subject: Antiseize on wheel studs causes binding?
>
> I cleaned off one of my lugs and the stud with 30W motor oil and it does
not
> bind anymore. Anyone care to comment on why antiseize can acutally cause
a
> lug to bind? I torque my lugs to 90ft-lbs. Should I use something
besides
> motor oil...maybe leave the studs dry?
>
> Ian
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