I use this in my diff and their ATF in my trans. Works well. Little expensive but everything runs much smoother. Some prefer amsoil or factory fluids. I replaced all mine at approximately 20k.Just wondering if anyone has used this lubricant and what their experience has been with it?
I was wondering this too. I was thinking of Royal Purple in the diff or Amsoil. I wonder if RP gear oil is better or Amsoil's Severe gear? I will use Amsoil in the M6 as their product has a nice hand pump that fits on the their bottles and makes tranny and rear ends much easier to fill. A bonus with Amsoil stuff.Just wondering if anyone has used this lubricant and what their experience has been with it?