This is my first trike after riding on two wheels since the late 60's and so far it is wonderful. I have a 2012 Goldwing with the Champion IRS kit with 32K miles in it. And I would like to know a little about the required maintenance on this trike kit. I looked at the maintenance pages for the kit, but the API GL-6 rear end lube they specify is no longer made. I have been using Mobile-1 Synthetic 85-140 LS differential lube in all of my cars, trucks, and previous wings, and would like to know if this will work. I am not sure if these differentials are open or a limited slip design. Also are there any other areas I should pay special attention to as far as wear or maintenance goes?
Thank you