I went out to my car this morning and the clutch pushed right to the floor with no resistance. It reached -5 here in chicago last night so I assume the seals shrunk and the fluid leaked out. If I warm the car up and then add additional fluid will this get me home? Where is the resevoir? Will any brake/hydraulic fluid work. Any help is appreciated, just trying to spend as little time out in the cold as possible.

Thanks