I asked Nextwave the very same subject and this is what they said:
Clean the guide rods and lead screws with WD-40 and then lubricate with a dry teflon/silicone spray or graphite.
This is a link to what we suggest and sell for machine lubrication:
http://shop.nextwaveautomation.com/shop ... ?itemid=40Regards,
Next Wave Automation tech support
One of the links you provided was WD40 with PTF which is Teflon (sort of), it should work.