1999 Mercury Mountaineer Owner Guide 1st Printing - Page 204

Maintenance and care The transmission fluid should be in this range if at normal operating temperature (66°C-77°C [150°F-170°F]). The transmission fluid should be in this range if at room temperature (10°C-35°C [50°F-95°F]). ADD COLD HOT DO NOT ADD High fluid level Fluid levels above the safe range may result in transmission failure. An overfill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage. High fluid levels can be caused by an overheating condition. ADD COLD HOT DO NOT ADD ADD COLD HOT DO NOT ADD Adjusting automatic transmission fluid levels Before adding any fluid, make sure the correct type is used. The type of fluid used is normally indicated on the dipstick and/or dipstick handle and also in the Lubricant specifications section in the Capacities and specifications chapter. Use of a non-approved automatic transmission fluid may cause internal transmission component damage. If necessary, add fluid in 250 mL (1/2 pint) increments through the filler tube until the level is correct. If an overfill occurs, excess fluid should be removed by a qualified ADD COLD HOT DO NOT ADD technician. An overfill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage. 204