I've thought it is strange that the BSA store sells items which are in contrast to their rules. Here are 3 examples but there are several.
http://www.scoutstuff.org/pro-wheel-...-xt-2-new.html
http://www.scoutstuff.org/lubricant-pwd-krytox.html
http://www.scoutstuff.org/pro-rail-rider.html
So not going political on the Scouts, but just want to caution you to research your own pack rules. I've found rules, enforcement and competition vary.