1990 Honda Accord Owner's Manual - Page 64
1990 Honda Accord Manual
Page 64 highlights
Engine Exhaust Gas Warning A properly maintained car is your best protection against exhaust gas entering the passenger compartment. The exhaust system should be thoroughly inspected by a competent mechanic whenever: The car is raised for oil change. You notice a change in the sound of the exhaust. The exhaust system or the rear or underside of the car is damaged. Avoid breathing exhaust gases. They contain carbon monoxide, which is a colorless, odorless gas that can cause loss of consciousness and eventual death. If you suspect that exhaust gas is entering the passenger compartment, have the cause determined and corrected as soon as possible. If you must drive under these conditions, drive only with all windows fully open. Do not drive with the trunk lid open. An open trunk lid may draw exhaust gases into the passenger compartment. If you must drive with the trunk lid open, drive only with all the windows wide open. Do not run the engine in confined areas, such as garages, any longer than necessary to move the car in or out. If you must sit in a parked car with the engine running for more than a short time, adjust the heating/ventilation system as follows: 1. [DX] Slide the function lever to and push the button off. [LX, EX] Select the and positions. 2. Set the temperature lever/control dial for best comfort. 3. Turn the fan to the highest speed. NOTE: To insure proper operation of the car's ventilation system, keep the front air inlet clear of snow, mud, leaves or other obstructions.