I can imagine! I'm not sure if Oasis has changed this aspect of the machine but ours circulated heated anti-freeze through all the rails AND through the spray arms. Like I said, our Typhoon was 20 years old and the high and low pressure spray manifolds weren't separated back then. However, the heated anti-freeze combined with an air blow out made for a great cold climate machine!
The Petit 360i really needs to be run in a bay with entrance and exit doors. If the bay gets below freezing, you're going to spend a ton of money weeping the machine.
Ive had turbo nozzles for about 5 years on two machines. I’ve only replaced 1 out of a 100 nozzles. Like JGinther said do not let them freeze. The machine is still heated if your purchase that option which makes it a great cold climate machine. You don’t have to rely on your doors operating correctly like you do with a petit.