Add it the same place you check it, through the dipstick tube. Check the level with the transmission hot, in park, engine running, on level ground. Use only Dexron fluid. Do not overfill!!!!!
The master cylinder contains the reservoir for the brake fluid. This is where you would add it on an 1990 Cutlass Supreme.
You add fluid at the same place you check it.
The battery one the 95 cutlass supreme is on the from driver side of the car,underneath the washer fluid container.
dextron / mercon type 2
REGULAR GM ATF FLUID
dextron 11e/111
towards the firewall, it is red.
Automatic-thru tube w/narrow funnel.
I got 2 gallons of transmission fluid... Use one gallon then keep checking the dip stick for the fluid to rise.
about 4 in the trans, about 5 in the lines.
Equalizer valve not allowing fluid flow to rear?
Check transmission fluid level Try changing transmission fluid and filter