The front axle would probably be 80-w90 possibly synthetic gear oil, a separately lubed cavity from the hydro transmission hydraulic system. The Pre Delivery inspection technician (using that term loosely) that went over your tractor coming off the truck before it went out the door should have checked level in the front axle. At the dealer shop, oil like that comes out of a drum with some sort of pumper-gizmo, it is possible that front diff got over-filled and excess is puking out a vent.
A "good" dealership will have someone in a "product support" role, which could be a sales-guy or shop-hand or parts-person who actually knows the product, that can drop by and check it out to determine if it gets trucked back to dealership (at dealer expense) or if its something they can determine cause of and rectify on site.
Make sure to watch what they do.