changing lower unit oil in alpha one

[peacekeeper6]

I am getting mixed ideas from people and my manual, i have two questions and i can get it from there,

1. what oil type viscosity?
2. can i pour it from the top?

 

[elpaso]

Re: changing lower unit oil in alpha one

Gear lube go's in bottom plug-
upper plug is the vent.
Check this site.
http://www.mercstuff.com/driveoil.htm