I tried some Molyslip in the bevel gearbox, mainly because I used it in my Moto Guzzi bevel box, it was required on them. It did not seem to make any noticeable difference and it was about the time of the "black goo" scare, so I decided to flush it out and stick with just gear oil. The Redline stuff does seem to make it all a bit quieter, or the box is wearing in more, or I am getting deafer, one of those.
