Some years ago I bought a tube of Superlube (I think from O/S) which lasted a very long time .. you can get it here

http://www.mektronics.com.au/brands/super-lube/super-lube-grease-3oz-tube.html

I've used it on all my EM's .. works very well but you only need to use it sparingly .. just a smear on moving parts will do

Recently I bought a tube of this stuff from BCF but haven't tried it yet

http://www.bcf.com.au/online-store/products/Teflon-Plus-Reel-Lube.aspx?pid=111927#Recommendations