The oil capacity for a 1989 Lincoln Town Car depends on the engine. There were several engines offered that year. You'll need to check your owner's manual or a reliable parts website (like AutoZone or Advance Auto Parts) and enter your car's VIN or engine code to get the precise amount.
Generally, the capacity is between 4.5 and 5 quarts, but it's crucial to find the exact figure for your specific vehicle to ensure proper lubrication.