Posted by Chewie [207.199.226.126] on Sunday, July 25, 2010 at 02:18:52 :
In Reply to: Anyone using synthetic oil in their axles? posted by Ron in Indiana [71.97.192.35] on Saturday, July 24, 2010 at 23:27:17 :
They make a synthetic for diffs (Red Line, Mobile, Amsoil) with the friction agents added in. But the best way to run cooler is to get a larger cover. More oil capacity, and some have cooling fins.