What oil are peeps using for their oil changes?

[Ollie]

I have on hand 4 qts of Honda GN4, 20w-50 oil which I'd like to utilize or use up, and the CB1100 will be due for a change soon. I know 10w-30 or 40 are the preferred viscosity but would the 20w-50 be ok in your opinions? The bike is kept in a conditioned garage so no cold morning starts. If not I suppose I can use it in my airhead by buying another 2 bottles to give me two, 3qt oil changes but it was just changed.