2011 Ford F450 Super Duty Crew Cab Owner Guide 4th Printing - Page 399

Maintenance and Specifications 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 handle and also in the Maintenance product specifications and capacities section in this chapter. Use of a non-approved automatic transmission fluid may cause internal transmission component damage. If necessary, add fluid in 1/2 pint (250 ml) increments through the filler tube until the level is correct. Type A ADD COLD HOT DO NOT ADD Type B If an overfill occurs, excess fluid should be removed by a qualified technician. An overfill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage. Do not use supplemental transmission fluid additives, treatments or cleaning agents. The use of these materials may affect transmission operation and result in damage to internal transmission components. 399 2011 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)