Originally Posted by BillK
WD-40 is a fairly lightweight (viscosity-wise) lubricant/cleaner/degreaser. So while it claims to drive out water, I think I'd stick with something heavier like grease. The last thing you want is either the stem or seatpost rusting into your frame.
Yikes, I think the bike will be hanging in a museum before it gets to that point. I hope to get a new bike every couple of years. (I've actually been through 8 bikes over the last year, I've kept 2 of them, returned 1 and sold off 5 on Craigslist). I just like to take care of my belongings while I have them.