[wiswind]

I have been putting the full 5 quarts in for well over 150K miles......and it is not a problem.
I read someplace that this is not a problem....but don't know where.
The official capacity is 4.5 quarts.

1/2 quart over will put you on the last letter......closest to the cross hatch area for the full range.
Now when it starts into the other letters .....you are pushing it.

In other words....more than 5 quarts is not a good idea.
As this is your first oil change......you most likely don't have a point of reference for where this is on your dip stick......so if uncertain.....you could always drain a SMALL bit out and see how it is.....
But my gut feel is that if you are not above 1 letter....more is bad.