How much transmission fluid in a 1999 buick century?

A 1999 Buick Century typically requires about 12 quarts of Transmission Fluid for a complete fluid change, including the torque converter. However, if you're just draining and refilling the transmission pan, you may only need around 5 to 7 quarts. Always consult the owner's manual or a repair guide for the exact specifications and to ensure you use the correct type of fluid.