The amount of transmission fluid needed for a 1991 Chevy Lumina depends on the type of transmission it has. There were several options available that year. You
must check your owner's manual for the exact specifications. The manual will specify the correct fluid type and the amount needed for a fill and a complete change.
Attempting to determine the amount without knowing the transmission type is inaccurate and could damage your transmission. Using too much or too little fluid can lead to serious problems.
