Cloudx
CEG'er
Safe for brass synchro's and it is a 30w synthetic. My tranny had no issues it's was rebuilt with a new clutch about 2 years ago. Well, they put ATF in it so I wanted change it out. Rollover noise was eliminated it feels like a new box after 250miles. Just simply amazing stuff. I don't like rp so no synchromax. This is amsoil's answer at 8.75$ a quart instead of $15.77 for rp.