1996 Ford Aerostar Owner's Manual - Page 269

In order to bleed the cooling system properly after initial fill with coolant, it might need up to five cycles of: u heating up the system (thermostat open) u making sure coolant is at least up to the cold fill mark of overflow bottle u letting the coolant cool down (engine coolant temperature gauge below the N of NORMAL) the cold fill mark u topping off the coolant overflow bottle to If coolant loss continues after 7,500 miles (12,000 km), consult your Ford Dealer. Windshield Washer Fluid and Wipers Washer Fluid Check the level of the windshield washer fluid every time you stop for fuel. The reservoir for the windshield washer fluid is located in the engine compartment. RWARNING Do not put windshield washer fluid in the container for the engine coolant. Windshield washer reservoir 291