t8 trim motor oil type and weight

Can any one tell me what type and weight to replace the oil in the tilt motor on a Yamaha 9.9hp motor

Thanks

wahoohunter99

[boats.net]

Yamaha Power Tilt and Trim fluid or ATF Dexron II.

Thanks Boat.net

Thanks for the reply boat.net
The oil the came out of it looked more like 90 weight oil
I'm afraid to put dexron ii in it I have seen what using the wrong type of oil can do to seals and o-rings its not pretty.