what oil for 250es motor/rear end?

[BIG Steve]

I looked at the rear end oil today in the trike and it is really thick and dirty.
What is a good oil to use in the rear.
Also I am going to change the motor oil as well. will any 10w40 oil work or does it need to be special?
Thanks Steve

[atctim]

For the rear end, use 90W gear oil. For the engine, 10W40 or 5W30 either will work. No "special" oil is needed. It's mostly about personal preference. I use 10W40 in my Big Red.

[MichiganRedneck]

for the rear end, i would put in amsoil 75w-90. you cant beat that stuff.