GMC 1996 Savana Van Owner's Manual page 243

How to Add Fluid Rear Axle
Refer
t o
the Maintenance Schedule to determine what
kind of transmission fluid to use. See "Recommended
Fluids and Lubricants" in the Index.
Add tluid only after checking the transmission fluid
HOT. (A COLD check is used only as a reference.) If
the fluid level is low, add only enough of the proper
fluid to bring the level up to the HOT area for a hot
check.
It
doesn't take much fluid, generally less than a
pint (0.5 L). DOLJ
't
overfill. We recommend you use only
fluid labeled DEXRON@-111, because fluid with that
label is made especially for your automatic transmission.
Damage caused by
fluid
other than DEXRON-111 is not
covered by your new vehicle warranty.
After adding fluid, recheck the fluid level as
described under "How
to
Check."
When the correct fluid level is obtained, push the
dipstick back in a l l the way; then flip the handle
down to lock the dipstick in place.
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant and when to change
it.
See
"Scheduled Maintenance Services" in the Index.
How to Check Lubricant
If the level is below the
bottom of the filler plug
hole, you'll need to add
some lubricant. Add
enough lubricant to raise
the level to the bottom of
the filler plug hole.
What to Use
Refer to the Maintenance Schedule
to
determine what
kind of lubricant to use. See "Recommended Fluids and
Lubricants" in the Index.
6-19