Cool Power 15% has 17% fully synthetic lubricant.
http://www.morganfuel.com/cp_blends.htm
Omega 15% has 17% lubricant with a Castor Synthetic blend (30% castor, 70% synthetic).
http://www.morganfuel.com/omega_blends.htm
I typically use electrons and they don't care which way is "up".
-Frank