As long as it is "lower unit oil" it will be fine, it's probably the exact same thing as the Walmart brand only more expensive.
I have used the Wal Mart brand for years with no problems and I change mine 2-3 times per year and check it before every trip to make sure I don't have any water.
how do u check the gear oil without it spilling all over and then filling it back up?
100% agree with this statement.Gear oil is gear oil. Some brands charge you extra for their advertising and marketing. Wal Mart doesn't.