fluid type for A-518

I'm wanting to know how type f would do with the overdrive? the overdrive is planetary gears correct? when i was racing dirt bikes a decade ago i ran type f atf in my dirst bike that was planetary gears and it made for better shifting then the 50 dollar a bottle gear lube the dirt bike shops were selling back then.
If it was just a reg 3 speed auto i wouldnt even have asked any questions and just ran type f because i know it works very well in a 3 speed 727 for i have ran it in them same with my old man and countless of other people i know, but i have not had a overdrive before first time for me so i just dont know how the overdrive will perform with the overdrive and am hoping to find out by sombody on here that has ran it or know somebody who has?