Lol, settle down there big shoots.... My fault for saying you "cannot" use synthetic, you should just use GL4 because its proven. Better oil how? Explain, you still have not. I obviously touched a nerve and you want to be right so bad its killing you, but still no math, backup, evidence. Why would one use a 'better' oil if a GL4 run brass synchro'd 4 speed runs great seemingly forever? That is the point I am trying to make that keeps bypassing your superior wisdom.
I did not post any questions here, I was replying to the original poster on here. That seemed to have escaped your superior intellect as well?