Ford Grand Marquis 1996 Used Automatic Gasoline mileage: 1 KM Ford Grand Marquis Mercury, driven 480,000 km. The body is still original, but there is a protective film on top of the body. Electronic meter. I just changed the spark plugs, fuel filter, cleaned the throttle body, and changed the oil, oil filter, and air filter. Only serious buyers should contact. The car is clean and has good acceleration. The car has been offered for 14,000. We will not disappoint those who are serious.