Squeaky Platters on Brand New Discover DJ?

I just bought a brand new Discover DJ, and the left platter has a slight squeak to it. Has anyone tried WD40? I don't want to mess anything up, so I'm just wondering if anyone has tried it... Does anyone else have this issue? Does it get worse? I can't really return it to a store because I bought it off of eBay...
Has anyone tried it? How much better is it?
Has anyone tried it? How much better is it?