To add tranny fluid, you remove thr transmission oil dip stick, and use your newly bought transmission oil funnel which will fit into the transmission oil dipstick tube and add oil, little at a time is best, dont over fill, if the oil shows on the stick at the add line, checking it hot and in park running, you probably only need about a half a quart.
A 1995 Buick LeSabre takes 7.4 quarts of transmission fluid. Dextron lll transmission fluid is recommended for use in the Buick LeSabre.
A 2005 Buick LeSabre automatic transmission requires 7.4 quarts of Dexron III fluid.
Dexron vi Remove and examine the transmission dip stick. It will tell you what fluid is required.
DextronDextron
dexron III
The same place the transmission fluid dipstick is. Be sure that you actually need to add fluid or you can cause serious damage to your transmission.
NO the transmission fluid will cause the seals in the pump to leak
5 to 7 for a fluid change Add 3 to 5 for a rebuild.
The transmission is a good place and the fluid is normally installed by using the dipstick tube which at the rear of the engine near the firewall.
7 to 7.5L of dexron 3
it takes 8 quarts of fluid
Dextron/mercron. Pull the dipstick & read what is imprinted on it.