I've looked in my owners manual, the FAQs' and used the search function and cannot find the fill capacity anywhere.
I know from previous posts some people prefer the Redline
gear oil but I was thinking of trying the Amsoil series2000
75w/90. Has anyone done this? Thanks

 

it takes 4.5 quarts or till it overflows. dunno about the gear oil though.

 

4.5 qt

http://web2.airmail.net/scutchen/max...ce.htm#redline

 

Yep, should be between 4.5-5qts. Enjoy!