Re: Gear oil :-X
I have never had any problems with any of the synthetics that I have tried, except they all suck in the cold until warmed up a tad... I've used Redline MTL, Mobil 1 gear oil, Amsoil, and GM/Pennzoil Synchromesh(using it right now, love it!)...
the Synchromesh is not synthetic but it and Amsoil are my favorites of the ones I have tried....