I have an '05 AC 500 auto and I was wondering/thinking about changing out the differential fluid to perhaps Amzoil.
Has anyone done this with their machine?

 

I did! And I think v2rider did as well. I used the Amsoil Marine stuff, as it can handle 10% water. 1 bottle is all you will need, as not much fits in there! Good luck, and this is a smart move IMO. [img]i/expressions/face-icon-small-happy.gif[/img]

 

Great choice if you do. Cattermans right, i have it in mine, 80-90 gear oil.

 

I use amsoil 75w90 Severe gear oil in mine.