1996 Ford Aerostar Owner's Manual - Page 309

Emission Control System Your vehicle is equipped with a catalytic converter which enables your vehicle to comply with applicable exhaust emission requirements. To make sure that the catalytic converter and the other emission control parts continue to work properly: u Use only unleaded fuel. u Avoid running out of fuel. u Do not turn off the ignition while your Schedule and Record booklet performed according to the specified schedule. RWARNING vehicle is moving, especially at high speeds. u Have the services listed in your Maintenance Do not park, idle, or drive your vehicle in dry grass or other dry ground cover. The emission system heats up the engine compartment and exhaust system, which can start a fire. RWARNING On vehicles without original equipment floor covering or insulation, do not let passengers ride in your truck in a manner that allows contact between skin and the metal floor. Watch for fluid leaks, strange odors, smoke, loss of oil pressure, the charge warning light, the check engine light, or the temperature warning light. These sometimes indicate that the emission system is not working properly. 331