Service Intervals
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 1983 Mercury Zephyr, 1983 Mercury Marquis, 1983 Mercury Lynx, 1983 Mercury LN7, and 1983 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.
Check fluid level at 15 month/15,000 mile intervals. Also, check whenever malfunction is suspected, leakage is observed, or after vehicle operation in water. Periodic draining and refilling are not required.