Vivo, the scooter was sitting on the dealer's floor and it had no fluids in it and no battery.
When they wheeled it into the service bay it so happened that their side door was wide open (beautiful day) so I could see the mechanic setting up & prepping the bike with fluids, tightening things down, checking this and that. They also had to charge the battery for it. He worked on it for quite some time and then the mechanic took it for a seven mile test ride and declared it fit and ready to ride.
And it rode nicely all the way home.
I don't know how old the oil and other fluids are that the dealer uses when they service bikes that are brought in. But I've never had any problems with the motor oil, gear oil, brake fluid, or coolant that they've replaced on my Burg 400 over the years.
But I will keep an eye on them on the S 250 as it requires much more maintenance than my Burg does